Presentations

2017 Presentations:
1.“Pure amplitude and wavelength modulation spectroscopy for detection of N2O using a three-sections quantum cascade laser” [SPIE Invited #10111-9], P. Patimisco, A. Sampaolo, Y. Bidaux, A. Bismuto, M. Scott, J. Jiang, F. K. Tittel, V. Spagnolo, San Francisco, CA (Jan 28-Feb 2, 2017) [PDF]

2. “Low power consumption quartz-enhanced photoacoustic gas sensor employing Fa quantum cascade laser in pulsed operation”, [SPIE Oral # 10111-12], A. Sampaolo, P. Patimisco, A. Gluszek, A. Hudizikowsi, F.K. Tittel, V. Spagnolo, Photonics West, San Francisco, CA (Jan 28-Feb 2, 2017) [PDF]

3.”Single-tube on beam quartz-enhanced photoacoustic spectrophones exploiting custom quartz tuning forks operating in the overtone mode” [SPIE Oral #10111-7], A. Sampaolo, P. Patimisco, M.Giglio, H. Zheng, H. Wu, L. Dong, F.K. Tittel, V. Spagnolo, San Francisco, CA (Jan 28-Feb 2, 2017) [PDF]Fpo

4.“CW DFB-QCL and EC-QCL based sensor for simultaneous NO and NO2 measurements based on a frequency modulation multiplexing using multi-pass absorption spectroscopy”, [SPIE Oral #10111-8], Y. Yu, N.P. Sanchez, C. Zheng, H. Wu, M. Lou, R.J. Griffin and F. K.Tittel, Photonics West, San Francisco, CA (Jan 28-Feb 2, 2017) [PDF]

5.“A compact mid-infrared dual-gas CH4/C­2H6 sensor using a single interband cascade laser and custom electronics”, [SPIE poster 310111-113], W. Ye, C. Zheng, F.K. Tittel, N. Sanchez, A. Gluszek, A. Hudzikowski, L. Dong, R. Griffin, Photonics West, San Francisco, CA (Jan 28-Feb 2, 2017) [Paper: PDF, Slides: PDF]

6.“A near-infrared gas sensor system based on tunable laser absorption spectroscopy and its application in CH4/C2H2 detection” [SPIE Poster #10111-114], Q. He, C.Zheng, H. Liu, Y.Wang, F. K. Tittel, Photonics West, San Francisco, CA (Jan 28-Feb 2, 2017) [PDF]

7. “Low Energy Consumption, Compact Set-up for Isotopic Analysis of Methane at 3007.95 cm-1 and 3008.39 cm-1 using a Room-Temperature CW Interband Cascade Laser,” A. Gluszek, A. Hudzikowski, K. Krzempek, K. Abramski, F.K. Tittel, EGU 2017, Vienna, Austria (April 23-28, 2017) [PDF]

8. “Nitrogen Dioxide Detection by use of Photoacoustic Spectroscopy with a High Power Violet-Blue Diode Laser” L. Dong, X. Yin, H. Zheng, H. Wu, S. Jia, F. K. Tittel, CLEO 2017, San Jose, CA (May 14-19, 2017). [PDF]

9. “Recent Advances and Applications of Mid-Infrared Cavity and Quartz Enhanced Photoacoustic Spectroscopy,” F. K. Tittel, V. Spagnolo, P. Patimisco, M. Giglio, A. Sampaolo, W. Ye, Q. He, H. Zheng, M. Lou, Mirsens 4, Wroclaw, Poland (May 15-17, 2017) [PDF]

10. “Compact, low power mid-infrared methane isotope 13CH4 and 12CHsensor using room-temperature CW interband cascade laser,” A. Hudzikowski, A. Gluszek, K.M. Abramski, F.K. Tittel, Mirsens 4, Wroclaw, Poland (May 15-17, 2017)

11. “Trace Gas Spectroscopy Using State-of-the-Art Mid-Infrared Semiconductor Laser Sources: Progress, Status and Applications,” F.K. Tittel, R.J. Griffin, N.P. Sanchez, W. Ye, Q. He, H. Zheng, M. Giglio, P. Patimisco, A. Sampaolo, V. Spagnolo, SPIE Optics + Photonics, San Diego, CA (August 6-10, 2017) [PDF]

2016 Presentations:

1. “Detection of atmospheric hydrogen peroxide based on long-path absorption spectroscopy using a CW EC-QCL” N.P. Sanchez, Y. Yu, L. Dong, R.J. Griffin, F.K. Tittel, Photonics West, San Francisco, CA (Feb.13-18, 2016) [pdf]

2. “Quartz enhanced photoacoustic leak sensor for mechatronic components,” A. Sampaolo, P. Patimisco, M. Giglio, G. Scamarcio, F.K.Tittel, V. Spagnolo, Photonics West, San Francisco, CA (Feb.13-18, 2016) [pdf]

3. “Quartz tuning forks with novel geometries for optoacoustic gas sensing,” V. Spagnolo, A. Sampaolo, P. Patimisco, L. Dong, Y. Gupta, Y. Yu, A. Geras, M. Giglio, G. Scamarcio, and F. K. Tittel, Photonics West, San Francisco, CA (Feb.13-18, 2016) [PDF]

4. “Compact TDLAS based methane sensor using a mid-infrared interband cascade laser and a novel dense pattern multipass gas cell”; Lei Dong, Chunguang Li, Yajun.Yu, F. K. Tittel; Photonics West, San Francisco, CA (Feb.13-18, 2016)

5. “Custom quartz tuning forks for optoacoustic gas sensing in the infrared and THz spectral ranges”, Vincenzo Spagnolo1, Pietro Patimisco, Angelo Sampaolo, Marilena Giglio, Lei Dong, Gaetano Scamarcio, F. K. Tittel, COST-SMMO 2016, Lisbon, Portugal (March 21-24, 2016)

6. “Mid-infrared laser based trace gas sensor technologies: recent advances and applications-I” F. K. Tittel, Webinar GE Global Research, Bangalore, India,(March 9, 2016) [PDF]

7. “Mid-infrared laser based trace gas sensor technologies: recent advances and applications-II” F. K. Tittel, Webinar GE Global Research, Bangalore, India, (April 4, 2016)

8. “Recent progress of mid-infrared compact, field deployable sensors, recent advances and their real world applications in industry, environment and defense,” F.K. Tittel, NEO Monitors, Oslo, Norway (April 12, 2016) [PDF]

8. “Mid–infrared cavity and quartz enhanced photoacoustic spectroscopy : recent advances and applications”, F. K. Tittel, L. Dong, C. Li, P. Patimisco, A. Sampaolo, V. L. Spagnolo, A. K. Gluszek, A Hudzikowski, J. Wojtas, C. Zheng, W. Ye, Norwegian Electro-Optics Meeting 2016, Fleischer’s Hotel, Voss, Norway.(April 13-15, 2016)

9. “Recent advances of mid–infrared compact, field deployable sensors: principles and applications ”, F. K. Tittel, A. Gluszek, A. Hudzikowski, Lei.Dong, Chunguang Li, Pietro Patimisco, A. Sampaolo, Vincenzo L. Spagnolo, J. Wojtas; European Geosciences Union General Assembly-EGU (April 17-22, 2016) [PDF]

10. “Recent advances and applications of mid-infrared cavity and quartz enhanced photoacoustic spectroscopy”, F. K. Tittel; TU Vienna, Research Group Process Analytics, Institute of Chemical Technologies and Analytics (April 20, 2016)

11. “Micro-resonator parameter optimization of a QEPAS spectrophone using a custom quartz tuning fork with large prongs spacing”; Vincenzo Spagnolo, Pietro Patimisco, Angelo Sampao, Marilena Giglio, Lei Dong, Gaetano Scamarcio, Frank K. Tittel; Conference on Lasers and Electro-Optics (CLEO), San Jose, CA (June 5-10, 2016) [PDF]

12. “Recent advances of mid–infrared compact, field deployable sensors and their real world applications in the petrochemical industry, atmospheric chemistry and security”, Frank K. Tittel, Aleksander K. Gluszek, Arkadiusz J. Hudzikowski, Lei Dong, Chunguang Li, Pietro Patimisco, Angelo Sampaolo, Vincenzo L. Spagnolo, Jacek Wojtas; CLEO, San Jose, CA (June 5-10, 2016) [PDF]

13. “Monitoring of atmospheric methane and ethane using two continuous-wave interband cascade lasers”, Chuntao Zheng, Chunguang Li,Lei Dong, Hongpeng Wu, Yajun Yu, Nancy P. Sanchez , Frank K. Tittel; CLEO, San Jose, CA (June 5-10, 2016) [PDF]

14. “Trace gas detection based on multi-quartz-enhanced photoacoustic spectroscopy”, Yufei Ma, Ying He, Xin Yu, Rui Sun, Frank K. Tittel; CLEO, San Jose, CA (June 5-10, 2016) [PDF]

15. “Near-infrared quartz enhanced photoacoustic sensor for sub-ppm level H2S detection based on a fiber-amplifier source”,Hongpeng Wu, Frank K. Tittel, Lei Dong, Huadan Zheng, Xukun Yin, Suotang Jia, CLEO, San Jose, CA (June 5-10, 2016) [PDF]

16. “Terahertz trace gas spectroscopy based on a fully-electronic frequency-comb radiating array in silicon”, M. Mahdi Assefzadeh, Babak Jamali, Aleksander K. Gluszek, Arkadiusz J. Hudzikowski; Jacek Wojtas; Frank K. Tittel, Aydin Babakhani CLEO, San Jose, CA (June 5-10, 2016) [PDF]

17. “Recent advances and applications of mid-infrared semiconductor laser based trace gas sensor technologies”, F.K. Tittel, P. Patimisco, A. Sampaolo,V. Spagnolo, A. Gluszek, A. Hudzikowski, OSA-LACSEA, Heidelberg, Germany (July 25-28, 2016) [PDF]

18. “New spectrophone designs based on a quartz tuning fork”, Lei Dong, Huadan Zheng, Hongpeng Wu, Vincenzo Spagnolo, Suotang Jia, Frank K. Tittel; PIERS, Shanghai, China (Aug. 8-16, 2016)

19. “Recent advances of the quartz-enhanced photoacoustic trace gas detection technique”, Vincenzo Spagnolo, Pietro Patimisco, Angelo Sampaolo, Marilena Giglio, Lei Dong, Frank K. Tittel; PIERS, Shanghai, China, (Aug. 8-16, 2016)

20. “New developments in quartz enhanced photoacoustic spectroscopy”, V. Spagnolo, A. Sampaolo, P. Patimisco, H. Zheng, M. Giglio, L. Dong, F. K. Tittel, SPIE Nanoscience and Engineering, San Diego, CA (Aug 28-Sept 1, 2016) [pdf]

21. “Quartz tuning fork with improved sensing performance for Terahertz quartz-enhanced photoacoustic sensors,” A. Sampaolo, P. Patmisco, M. Giglio, M.S. Vitiello, G. Scamarcio, F.K. Tittel, V. Spagnolo, Int’l Quantum Cascade Lasers Schools and Workshop (IQCLSW), Cambridge, UK (September 4-9, 2016) [PDF]

22. “Recent advances of mid-infrared compact, field deployable sensors: principles and applications”, F.K. Tittel, A. Gluszek, A. Hudzikowski, L. Dong, C. Li, P. Patimisco, A. Sampaolo, V.L. Spagnolo, J. Wojtas, FLAIR 2016, Aix-les-Bains, France (Sept.12-16, 2016) [PDF]

23.“Quartz enhanced photoacoustic  spectroscopy: Principles and recent advancements”,  V. Spagnolo, P.  Patimisco, A. Spagnolo, M. Giglio, A. Geras, T. Starecki, L. Dong, F.K. Tittel, 3rd Conference on Photoacoustic and Photothernal Theory and Applications, Warsaw, Poland (Sept. 13-16, 2016)

24.“Investigation of CH4 leaks from the natural gas distribution system in the Houston area employing a dual CW-DFB ICL-based sensor system”, N. P. Sanchez, C. Zheng, W. Ye, B. Czader, A. K. Gluszek, A. J. Hudzikowski, D. Cohan, R. J. Griffin and F.  K. Tittel, MIRTHE Symposium on Regional Air Quality Monitoring in Safety and Security Applications, City College of New York, Oct. 3-4, 2016 [PDF]

25.“Innovative quartz enhanced photoacoustic sensors for trace gas detection” , V. Spagnolo, P. Patimisco, A. Sampaolo, M. Giglio, L. Dong, G. Scamarcio, F.K. Tittel; SPIE Europe , April 3-7, 2016, Brussels, Belgium [PDF]

2015 Presentations:

1. “Quantum cascade laser-based sensor system for nitric oxide detection”, F. K.Tittel, J. J. Allred, Y. Cao, N. P. Sanchez, W. Ren, W. Jiang, D. Jiang, R. J. Griffin, Photonics West, San Francisco, CA (February 7-12, 2015) [PDF]

2. “Interband cascade laser based absorption sensor for ppb-level formaldehyde detection”, W. Ren, L. Luo, Y. Cao, W. Jiang, and F. K. Tittel, Photonics West, San Francisco, CA (February 7-12 2015) [PDF]

3. “New approaches in quartz enhanced photoacoustic sensing”, A. Spagnolo, P. Patimisco, R. Pennette, G. Scamarcio, F. K. Tittel, Photonics West, San Francisco, CA (February 7-12, 2015) [PDF]

4. “Quantum cascade laser-based multipass absorption system for hydrogen peroxide detection”, Y. Cao, N. P. Sanchez, W. Jiang, W. Ren, R. Lewicki, D. Jiang, R. J. Griffin, F. K. Tittel, Photonics West, San Francisco, CA (February 7-12, 2015) [PDF]

5. “Optical coupling and loss properties of 200 µm-bore hollow core waveguides providing single mode laser beam delivery in the range 5.1-10.5 µm”, P. Patimisco, A. Sampaolo,  J. M. Kriesel, G. Scamarcio and V. Spagnolo, Photonics West, San Francisco, CA (February 7-12, 2015)-9370-42 [PDF]

6. “Mid-infrared interband cascade laser based trace gas sensor technologies: recent advances and applications”, F. K. Tittel, L. Dong, C. Li, Y. Yayun, P. Patimisco, A. Sampaolo, G. Scamarcio, V. Spagnolo, W. Ren, International Conference and Exhibition on Optics and Electro-Optics, OASIS 5, Tel Aviv, Israel (March 3-4, 2015) [PDF]

7. “Compact ICL and QCL based Mid-infrared sensors: Development and Applications”, F. K. Tittel, L.Dong, C. Li, Y. Yu, P. Patimisco, A. Sampaolo, G. Scamarcio, V. Spagnolo, W. Ren, Intnl. Workshop on opportunities and challenges in mid-IR laser based gas sensing, MIRSENS 3, Wuerzburg, Germany, (March 5-7, 2015) [PDF]

8. “Mid-infrared detection of atmospheric CH4, N2O and H2O based on a single continuous wave quantum cascade laser”, Y. Cao, N. P. Sanchez, R. J. Griffin, F. K. Tittel , Conference on Lasers and Electro-Optics (CLEO), San Jose, CA (May 10-15, 2015) [PDF]

9. “Modeling the dependence of fork geometry on the performance of quartz enhanced photoacoustic spectroscopic sensors”, S. L. Firebaugh, A. Sampaolo, P. Patimisco, V. Spagnolo, and F. K. Tittel, Conference on Lasers and Electro-Optics (CLEO), San Jose, CA (May 10-15,  2015) [PDF]

10. “Recent Advances in Quartz Enhanced Photoacoustic Spectroscopy for Trace Gas Sensing”, V. Spagnolo, P.Patimisco, A. Sampaolo, G. Scamarcio, F.K. Tittel, CLEO Europe, Munich, Germany, (July 21-26, 2015) [PDF]

11. “New developments in THz quartz-enhanced photoacoustic spectroscopy”, V. Spagnolo, P. Patimisco, A. Sampaolo, G. Scamarcio, M. S. Vitiello, F. K. Tittel, 8th International Conference on Advanced Vibrational Spectroscopy (ICAVS), July 12-17, 2015, Vienna, Austria. [PDF]

12. ” Recent advances of mid–infrared semiconductor laser based trace gas sensor technologies for environmental monitoring”, F. K. Tittel, L.Dong, C. Li, Y. Yu, P. Patimisco, A. Sampaolo, G. Scamarcio and V. Spagnolo, 8th International Conference on Advanced Vibrational Spectroscopy (ICAVS), July 12-17, 2015, Vienna, Austria [PDF]

13. “Mid–infrared cavity and quartz enhanced photoacoustic spectroscopy : recent advances and applications”, F. K. Tittel, L.Dong, C. Li, Y. Yu, P. Patimisco, A. Sampaolo, G. Scamarcio, V. Spagnolo,T. Starecki, A. Geras, ICPPP18,  Novi Sad, Serbia (Sept 6-10, 2015)  [PDF]

14. “Quartz-enhanced photoacoustic trace gas technique: recent advances and new developments”, Spagnolo, P. Patimisco, A. Sampaolo, G. Scamarcio, F. K. Tittel, ALT: Advanced Laser Technologies, Sep 7-11, 2015, Faro, Portugal.[PDF]

15. “Mapping the spatial distribution of methane in Houston, Texas”, B. Czader, D. Cohan, N. Sanchez, F. K. Tittel, and R. Griffin,  CMAS, Oct. 5-7, 2015

16. “Development and Applications of Mid- Infrared and THz Laser based Gas Sensor Systems” F. K. Tittel, Dong, C. Li, Y. Yu, P. Patimisco, A. Sampaolo, G. Scamarcio,  V.  Spagnolo, T. Starecki, A. Geras, ICCCP Suchou, (Nov 2-6, 2015) [PDF]

17.“Recent developments in QEPAS – a spectroscopic technique for trace gas sensing”, A. Geras, T. Starecki, A. Sampaolo, V. Spagnolo, P. Patimisco, L. Dong, and F. K. Tittel, NATO Izmir, Turkey, Nov. 3-6, 2015

18.”Simplified lock-in detection for QEPAS trace gas sensing applications”, T. Starecki, and F. K. Tittel, NATO Advanced Research Workshop on THz Diagnostics of CBRN effects, detection of Explosives and CBRN, Izmir, Turkey Nov. 3-6, 2015

19. “H2S detection from near-IR to THz spectral regions via Quartz-Enhanced Photoacoustic Spectroscopy,” A. Sampaolo, P. Patmisco, L. Dong, G. Scamarcio, M.S. Vitiello, F.K. Tittel, V. Spagnolo, NATO Advanced Research Workshop on THz Diagnostics of CBRN effects, detection of Explosives and CBRN, Izmir, Turkey Nov. 3-6, 2015

20. “Tunable laser for methane sensing,” F.K. Tittel, A. Hudzikowski, A. Gluszek, J. Wojtas, ARPA-E, Houston, TX (December 9, 2015) [PDF]

2014 Presentations:

1. “Mid-infrared semiconductor laser based trace gas technologies: recent advances and applications”, F.K. Tittel, 20 Years of QCL, ETH-Zurich, Switzerland (Jan 16-18 2014). [PDF]

2. “Quantum Cascade laser based sensor system for hydrogen peroxide detection”, W. Ren, W. Jiang, N. P. Sanchez, P. Patimisco, V. Spagnolo, C. Zah, F. Xie, L. C. Hughes, R.J. Griffin and F. K. Tittel, Photonics West 2014, OPTO, San Francisco, CA (Feb 2-6 2014). [PDF]

3. “Mid-Infrared Semiconductor Laser based Trace Gas Sensor Technologies: Recent Advances and Applications”, F. K. Tittel, W. Ren, N. P. Sanchez, W. Jiang, P. Patimisco, V. Spangnolo, R. J. Griffin, FLAIR 2014, Pratolino, Italy (May 5-9, 2014). []

4. “A High Protein Challenge Increases Gut-Derived Exhaled Breath Ammonia” M. Mudalel, L. Spacek, F.K. Tittel, R. Lewicki, T. Risby, J. Stolzfus, S. Solga, DDW, Chicago, IL (May 3-6, 2014).

6. “QCL Based Absorption Sensor for Simultaneous Trace-Gas Detection of CH4 and N2O”, W. Jiang, F. K. Tittel, CLEO 2014, San Jose, CA (June 8-13 2014) [PDF]

7. “Current Status of Mid-Infrared Quantum and Interband Cascade Lasers Based Trace Gas Detection in Exhaled Breath”. F.K. Tittel, W. Ren, W. Jiang, Y. Cao, Breath Analysis 2014, Torun, Poland (July 6-9 2014). [PDF]

8. “Current Status of Mid-Infrared Quantum and Interband Cascade Lasers Based Trace Gas Detection in Exhaled Breath”, F. K.Tittel, W. Ren, W. Jiang, Y. Cao, J. J. Allred, L. Luo, D. Jiang, L. Dong, Mid-Infrared Medical Systems, Princeton, NJ (July 21-22 2014).

9. “Nitric Oxide Detection in Breath Using a CW DFB-QCL based QEPAS Sensor”, J. Allred, W. Jiang, N.P. Sanchez, Y. Cao, D. Jiang, and F.K. Tittel, MIRTHE Summer Workshop, Princeton University, Princeton, NJ (August 4-8 2014) [PDF]

10. “Hydrogen Peroxide Detection Based on Long Path-Length Absorption Spectroscopy Using Quantum Cascade Laser”, Y. Cao, N. P. Sanchez, W. Jiang, F. K. Tittel, Rice Quantum Institute Summer Research Colloquium, Rice University, Houston, TX (August 8 2014).

11. “Mid-infrared trace gas detection in exhaled breath for disease diagnostics and monitoring”, F. K. Tittel, W. Ren, W. Jiang, Y. Cao and D. Jiang, 35th PIERS, Guangzhou, China (August 25-28 2014). [PDF]

12. “Mid-infrared semiconductor laser based trace gas technologies: recent advances and applications”, F. K.Tittel, W. Ren, W. Jiang, Y. Cao and D. Jiang, The Chinese University of Hong Kong, China (August 29 2014) [PDF]

13. “Inter-band & Sub-band Quantum Cascade Laser based Trace Gas Sensor Technologies: Recent advances and Applications”, F. K. Tittel, W. Ren, W. Jiang, Y. Cao, D. Jiang, V. Spagnolo, P. Patimisco, International Quantum Cascade Laser School & Workshop (IQCLSW), Policoro, Italy (September 7-12 2014).

14. “Mid-infrared semiconductor laser based trace gas analyzers: Advances, applications and future outlook”, S. So, W. Ren, W. Jiang, Y. Cao, D. Jiang, F.K. Tittel, V. Spagnolo, P. Patimisco, 2nd International Conference and Exhibition on Lasers, Optics & Photonics, Philadelphia, PA (September 8-10, 2014) [PDF]

15. “Mid-infrared semiconductor laser based trace gas sensor technologies and applications”, F. K. Tittel, Keynote speech, 2nd Conference on Photoacoustic and Photothermal Theory and Applications (CPPTA), Warsaw, Poland. (September 23-26, 2014) [PDF]

16. “Recent advances in mid-infrared quantum and interband cascade laser-based trace gas detection”, F. K.Tittel, W. Ren, W. Jiang, Y. Cao, N. P. Sanchez, L. Luo, D. Jiang, J. J. Allred, P. Patimisco, V. Spagnolo, R. J. Griffin, Mid- IR Optoelectronics: Materials and Devices (MIOMD 2014), Montpellier, France (October 5-9 2014)

17. “Advanced measurement concepts for mid-infrared semiconductor laser based trace gas sensor technologies: opportunities and challenges,” F.K. Tittel, Mid- IR Optoelectronics: Materials and Devices (MIOMD 2014), Montpellier, France (October 5-9 2014) [PDF]

18. “Laser Absorption Sensors for Combustion Diagnostics and Environmental Trace Gas Sensing”, W. Ren, F. K. Tittel, OSA Optics and Photonics Congress, 2014,   Canberra, Australia (Dec 2-5, 2014).

2013 Presentations:

1. “CW DFB RT diode laser based sensor for trace-gas detection of ethane using novel compact multipass gas absorption cell” R. Lewicki, M. Jahjah, F.K. Tittel, K. Krzempek, P. Stefanski, SPIE Photonics West, San Francisco, CA (February 2-7, 2013) [PDF]

2. “Mid- infrared semiconductor laser based trace gas sensor technologies for environmental monitoring and industrial process control,” R. Lewicki, M. Jahjah, F.K. Tittel, Y. Ma, P. Stefanski, J. Tarka, SPIE Photonics West, San Francisco, CA (February 2-7, 2013) [PDF]

3.  “The state-of-the-art and grand challenges of Mid-IR technology and applications”; F.K. Tittel, R. Lewicki, M. Jahjah, K. Krzempek, L. Gong, J. Tarka, P. Stefanski, Y. Ma, J. Zhang, US-UK Workshop in Mid-IR to THz Technology and Applications, Edinburgh, Scotland (Feb. 18-19, 2013) [PDF]

4. “The state-of-the-art and grand challenges of Mid-infrared technology and applications,” F.K. Tittel, R. Lewicki, M. Jahjah, P. Stefanski, J. Tarka, L. Gong, R. Griffin, M. Razeghi, Y. Ma, 1st Annual Conf. of COST Action MP1204 & SMMO2013, Institute of Physics, Warsaw, Poland (February 27 – March 2, 2013) [PDF]

5. “Quantum Cascade Laser Atmospheric Monitoring,” R. Curl, F. Tittel, R. Lewicki, G. Wysocki, University of Louisville (May 6, 2013) [PDF]

6. “Mid-Infrared semiconductor laser based trace gas sensor technologies: recent advances and applications”; F.K. Tittel, R. Lewicki, M. Jahjah, L.Gong, J. Tarka, P.Stefanski, J. Zhang, Innovative Forum, Center for Optical Sensors and Spectroscopies, University of Alabama at Birmingham, Birmingham, AL (May 14, 2013)

7. “Mid-infrared semiconductor laser based trace gas technologies: recent advances and applications”, F. K. Tittel, R. Lewicki, M. Jahjah, P. Stefanski, J. Tarka, L. Gong, R. Griffin S. So, D.Thomazy W. Jiang, J. Zhang, P. Lane, R.Talbot, ETHZ Physics Department Seminar, Zurich, Switzerland (April 29, 2013).

8. “QC Laser-Based Sensor for 13CO2/12CO2 Isotopic Ratio Measurements, Preliminary Studies,” D. Weidmann, C. Roller, K. Uehara, F. K. Tittel, PSI/Rice, Boston, MA (June 6, 2013). [PDF]

9. “CW TEC DFB-QCL based sensor for ultra-sensitive detection of methane and nitrous oxide for environmental and medical applications”; M. Jahjah, R. Lewicki, J. Tarka, P. Stefasnki, F.K. Tittel, CLEO 2013, San Jose, CA (June 9-14, 2013) [PDF]

10. “ Sensitive Detection of Carbon Monoxide using a Compact High Power CW DFB-QCL based QEPAS Sensor”; P.Stefanski, R. Lewicki, J. Tarka, Y. Ma, M. Jahjah, F.K. Tittel, CLEO 2013, San Jose, CA (June 9-14, 2013) [PDF]

11. “Sulfur Dioxide Detection using 7.4 µm DFB-QCL based cavity enhanced absoption spectroscopy”; J. Tarka, P. Stefanski, R. Lewicki, S. So, M. Jahjah, F.K. Tittel, CLEO 2013, San Jose, CA (June 9-14, 2013) [PDF]

12. “Sulfur Dioxide Detection using CW-DFB-QCL based Quartz-Enhanced Photoacoustic Spectroscopy”; J.P.Waclawek, R. Lewicki, H. Moser, M. Brandsetter, F.K. Tittel, B. Lendl, CLEO 2013, San Jose, CA (June 9-14, 2013) [PDF]

13. “Sensitive Detection of CO and N2O using a High Power CW 4.61 µm DFB-QCL based QEPAS Sensor”; Y. Ma, R. Lewicki, M. Razeghi, X. Yu, F.K. Tittel, CLEO 2013, San Jose, CA (June 9-14, 2013) [PDF]

14. “Recent advances and applications of mid-infrared based trace gas sensor technology,” F.K. Tittel, Y.A. Bakhirkin, A.A. Kosterev, R. Lewicki, S. So, G. Wysocki, R.F. Curl, CLEO 2013, San Jose, CA (June 9-14, 2013) [PDF]

15. “Mid-Infrared semiconductor laser based trace gas sensor technologies: recent advances and applications”, F.K. Tittel, R. Lewicki, M. Jahjah, L.Gong, J. Tarka, P.Stefanski, J. Zhang, TDLS 2013, Moscow, Russia (June 17-21, 2013) [PDF]

16.  “Detection of low-concentration nitric oxide emitted by cancer cells using a QCL based TDLAS sensor”, S. Huang, M. Köhring, C. Caneba, L. Yang, P. Stefanski, J. Tarka, W. Jiang, M. Jahjah, D. Nagrath, F.K. Tittel, MIRTHE Summer school, Princeton University, Princeton (NJ), (August 5-9,2013).

17.  “Mid-infrared semiconductor laser based trace gas technologies: state-of-the-art & grand challenges”, F. K. Tittel, OSA Rice Student Chapter, Rice University, Houston (TX), (September 18, 2013).

18.  “Mid-Infrared semiconductor laser based trace gas sensor technologies and applications: state of the art and grand challenges“, F.K. Tittel, R. Lewicki, M. Jahjah, P.Stefanski, J. Tarka, W.Jiang, J. Zhang, L.Gong, R. Griffin, S. So, D.Thomazy, P. Lane, R. Talbot, Conference on Photacoustic and Phothermal Theory and Applications (CPPTA), Warsaw, Poland (Sept 25-27, 2013) [PDF]

19. “Cavity enhanced absorption spectroscopy and photoacoustic spectroscopy for human breath analysis,” J. Wojtas, F.K. Tittel, T. Stacewicz, Z. Bielecki, R. Lewicki, J. Mikolajczyk, M. Nowakowski, D. Szabra, P. Stefanski, J. Tarka, Conference on Photacoustic and Phothermal Theory and Applications (CPPTA), Warsaw, Poland (Sept 25-27, 2013) [PDF]

20.  “Environmental ammonia monitoring for urban and rural areas of Texas using an EC-QCL based sensor platform”, R. Lewicki, L. Gong, R. Griffin et. al, T. Day, F.K. Tittel, International Conference and Exhibition on Lasers, Optics & Photonics, San Antonio, TX (Oct 7-9 2013)

21.  “Mid-Infrared semiconductor laser based photoacoustic spectroscopy for innovative trace gas sensor applications”, F. K. Tittel, ICPPP17, Suzhou, China (Oct 20-24 2013) [PDF]

2012 Presentations:

1.  “Sensitive detection of nitric oxide using a 5.26 μm CW DFB quantum cascade laser based QEPAS sensor”, F.K. Tittel, L. Dong, R. Lewicki, G. Lee, J. Peralto, M. Trocolli, and V. Spagnolo, SPIE Photonics West, San Francisco, CA (January 21- 26 2012). [PDF]

2 . “Passively Q-Switched GdVO4/Nd:VO4 Laser using Continuous-grown Composite Crystals using 879nm Direct Pumping”, X. Yu, Y. Ma, F. K. Tittel, X. Li, 2012 OSA Optics and Photonics Congress, San Diego, CA, (January 29 – February 3 2012)

3 . “Sensitive Detection of Ethane using Tunable Laser Diode Absorption Spectroscopy Near 3.3 microns”, R. Lewicki, K. Krzempek, L. Naehle, J. Koeth, J. Gupta, F. K. Tittel,  2012 OSA Optics and Photonics Congress, San Diego, CA, (January 29 -February 3 2012)

4.  “Sub-ppb Detection of Nitrogen Dioxide with an External Cavity Quantum Cascade Laser”, R. Lewicki, K. Liu, T. Day, F.K. Tittel, SPIE Photonics West, San Francisco, CA (January 21- 26, 2012) [PDF]

5.   “Real time detection of exhaled human breath using quantum cascade laser based sensor technology”; F. K. Tittel, R. Lewicki, L. Dong, K. Liu, T. H. Risby, S. Solga, T. Schwartz SPIE Photonics West, San Francisco, CA (January 21- 26, 2012); Proceedings Vol. 8268, Quantum Sensing and Nanophotonic Devices IX, Manijeh Razeghi; Eric Tournie; Gail J. Brown, Editors, 82682H

6.  “Sensitive Detection of Ethane using Tunable Laser Diode Absorption Spectroscopy near 3.3microns”, R. Lewicki, K. Krzempek, L. Nahle, J. Koeth, J. Gupta, F.K. Tittel, 2012 OSA Optics and Photonics Congress, Laser Applications to Chemical, Security and Environmental Analysis, San Diego, CA (Jan 29 to Feb 3, 2012)

7.  “Modulation Cancellation Method for Spectroscopic Measurements”, V. Spagnolo, L. Dong, A.A. Kosterev, F.K. Tittel, OSA Optics and Photonics Congress, Laser Applications to Chemical, Security and Environmental Analysis, San Diego, CA (Jan 29 – Feb 3, 2012) [PDF]

8.  “A Compact CW Quantum Cascade Laser based QEPAS Sensor for Sensitive Detection of Nitric Oxide”, R. Lewicki , L. Dong , Y. Ma, F.K. Tittel, CLEO, San Jose, CA (May 6-11, 2012) [PDF]

9.  “A sensitive CW DFB quantum cascade laser based QEPAS sensor for the detection of  SO2”,  J.P Waclawek , R. Lewicki, 2012 CLEO post deadline , San Jose, CA (May 6-11 2012)

10.  “Sensitive detection of nitric oxide using a quantum cascade laser based QEPAS sensor,” F.K. Tittel, L. Dong, R. Lewicki, V. Spagnolo, Y. Zhang, IEEE Int.l Symposium on Photonics and Optoelectronics (SOPO 2012) poster,  Shanghai, China, (May 22-23, 2012) [PDF]

11.  “Infrared semiconductor laser based trace gas sensor technologies: recent advances and applications”, F. K. Tittel, Dept. of Physics, Shanghai Jiaotong University, Shanghai (May 21, 2012)

12.  “Quantum Cascade Laser based Trace Gas Sensor Technologies: Recent Advances and Applications in Environmental Monitoring and Medical Diagnostics”, F. K. Tittel, College of Electronic Science and Engineering, Jilin  University , Changchun, (May 24, 2012)

13.  “Mid-Infrared Semiconductor Laser based Trace Gas Sensor Technologies: Recent Advances and Applications in Environmental Monitoring”, F. K. Tittel, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing (May 25, 2012) [PDF-Abstract]

14.  “Modular Chemical Sensor Technologies for Environmental Monitoring”, F. K. Tittel, 15th Int. Conf. Laser Optics 2012, St. Petersburg, Russia (June 25-29, 2012) [pdf]

15.  “A sensitive CW-DFB-QCL based QEPAS sensor for detection of SO2”, J. P. Waclawek, R. Lewicki, M. Jahjah, E.T.H. Chrysostom, Y. F. Ma, F. K. Tittel and B. Lendl,
Int. QCL School & Workshop 2012, Baden, Vienna, Austria, (September 2-6, 2012)

16.  “Carbon monoxide detection using high power CW 4.6 um DFB QCL based QEPAS sensor”, R.Lewicki, Y.Ma, M.Jahjah, M. Razeghi, F.K. Tittel, MIOMD-XI, Evanston, IL (September 4-8, 2012) [PDF]

17.  “Mid-Infrared semiconductor laser based trace gas sensor technologies: recent advances and applications”; F. K. Tittel , R. Lewicki, M. Jahjah, Y. Ma, K. Krzempek, P. Stefanski, J. Tarka, L. Gong, R. Griffin, MIOMD-XI Evanston, IL (September 4-8, 2012) [PDF]

18. “Mid-Infrared semiconductor laser based trace gas sensor technologies: recent advances and applications”, F. K. Tittel, R. Lewicki, M. Jahjah, Y. Ma, K. Krzempek, P. Stefanski, S. So, D. Thomazy, J. Waclawek, E.t.H. Chrysostom, B. Lendl, MIOMD-XI, Infrared Optoelectronics: Materials and Devices, Chicago, IL, (September 4 – 8, 2012) [PDF]

19. “Current Status of Mid-Infrared Semiconductor-Laser-based Sensor Technologies: for Trace-Gas Sensing Applications”, R. Lewicki, M. Jahjah, Y. Ma, P. Stefanski, J. tarka, M. Razghi, F. K. Tittel  B. Lendl, MIOMD-XI, Infrared Optoelectronics: Materials and Devices, Evanston, IL, (September 4 – 8, 2012) [PDF]

20.  “Mid-IR Laser Based Trace Gas Sensor Technologies: Recent Advances and Applications in Environmental Monitoring and Medical Diagnostics”; F. K. Tittel. Int’l Semiconductor Laser Conference (ISLC) 2012, San Diego, California (Oct. 7-10, 2012) [2PDF]

21.  “Mid-Infrared Semiconductor based Trace Gas Sensor Technologies: Recent Advances and Applications,”  F.K. Tittel, R. Lewicki, M. Jahjah, Y. Ma, K. Krzempek, P. Stefanski, J. Tarka, MIRSENS-II, 2nd International Workshop on Opportunities and Challenges in Mid-Infrared Laser-based Gas Sensing, Wroclaw, Poland (Oct. 18-20, 2012) [PDF]

22.  “QEPAS based sensor for detection of sulfur dioxide using a CW-DFB-QCL” J.P. Waclawek, R. Lewicki, M. Jahjah, Y.F. Ma, E.t.H. Chrysostom, B. Lendl, F.K. Tittel, MIRSENS-II, 2nd Inter. Workshop on Opportunities and Challenges in Mid-Infrared Laser-based Gas Sensing, Wroclaw, Poland (Oct. 18-20, 2012)

23.  “Mid-infrared Laser Based Gas Sensor Technologies for Environmental Monitoring, Medical Diagnostics, Industrial and Security Applications”; F. K. Tittel, R. Lewicki, M. Jahjah, K. Krzempek, L. Gong, R. Griffin, B. Foxworth, NATO Advanced Research Workshop on Detection of Explosives and CBRN, Tera MIR, Cesme, Izmir, Turkey (Nov. 3-6, 2012) [Paper: PDF, Slides: PDF]

24.  “Mid-Infrared semiconductor laser based trace gas sensor technologies: recent advances and applications”; F. K. Tittel, R. Lewicki, M. Jahjah, Y. Ma, P. Stefanski Asia Communications and Photonics Conference (ACP), Guangzhou, China (Nov.7-10, 2012) [PDF]

25.  “Mid-Infrared semiconductor laser based trace gas sensor technologies: recent advances and applications”, Atomic, Molecular, and Optics Physics Seminar, Department of Physics and Astronomy, Texas A&M University, College Station, TX (Nov. 28, 2012) [PDF]

2011 Presentations:

1 . “Compact Portable QEPAS Multi-gas Sensor”, L. Dong. A. A. Kosterev, D. Thomazy, F. K. Tittel, Quantum Sensing and Nanophotonic Devices VIII, San Francisco, CA, (January 23-27, 2011) [PDF]

2. “Real time ammonia detection in exhaled human breath using a distributed feedback quantum cascade laser based sensor”, R. Lewicki, A. A. Kosterev, D. Thomazy, T. H. Risby, S. Solga, T. B. Schwartz, F. K. Tittel, Quantum Sensing and Nanophotonic Devices VIII, San Francisco, CA, (January 23-27, 2011) [PDF]

3. “Faraday rotation spectroscopy of nitrogen dioxide based on a widely tunable external cavity quantum cascade laser,” C.A. Zaugg, R. Lewicki, T. Day, R.F. Curl, F.K. Tittel, Quantum Sensing and Nanophotonic Devices VIII, San Francisco, CA, (January 23-27, 2011) [PDF]

4. “Recent advances in resonant optothermalacoustic detection,” J.H. Doty, A.A. Kosterev, F.K. Tittel, Quantum Sensing and Nanophotonic Devices VIII, San Francisco, CA, (January 23-27, 2011) [PDF]

5. “Real Time, Ultra-Fast, Breath Ammonia Determination,” T. B. Schwartz, S. F. Solga, L. Spacek, R. Lewicki, F. K. Tittel, T. Risby, MIRTHE, Princeton (February 23, 2011) [PDF]

6. “Infrared Semiconductor laser based trace gas sensor Technologies: Recent Advances and Applications”, F. K. Tittel, R. F. Curl, L. Dong, R. Lewicki, SPIE Europe; and Photonic Crystal Fibers V, Prague, Czech Republic, (April 18 – 21 2011) [Paper: PDF, Slides: PDF]

7. “Modulation cancellation method for spectroscopy,” V. Spagnolo, L. Dong, A.A. Kosterev, D. Thomazy, J.H. Doty, F.K. Tittel, SPIE Europe, Prague, Czech Republic, (April 18 – 21 2011)

8. “Quantum-cascade-laser-based optoacoustic detection for breath sensor applications,” V. Spagnolo, R. Lewicki, L. Dong, F.K. Tittel, IEEE Int’l Symposium on Medical Measurements and Applications, Bari, Italy (May 30-31, 2011) [PDF]

9. “Mid-Infrared Quantum Cascade Laser based Trace Gas Technologies: Recent Progress and Applications in Health and Environmental Monitoring,” F.K. Tittel, L. Dong, R. Lewicki, K. Liu, V. Spagnolo, IQEC/CLEO Pacific Rim 2011, Sydney, Australia (August 28 – September 1, 2011)  [PDF]

10.  “Environmental Ammonia Monitoring for Urban and Rural Area of Texas using an EC-QCL based Sensor Platform,” R. Lewicki, L. Gong, R. J. Griffin, T. Day, F. K. Tittel, RQI Colloquium XXV, Houston, Texas (August 5, 2011) [PDF]

11. “Infrared semiconductor laser based trace gas sensor technologies: recent advances and applications,” F.K. Tittel, L. Dong, L. Gong, R. Griffin, A.A. Kosterev, R. Lewicki, D. Thomazy, University of Adelaide, Adelaide, S.A. (September 2, 2011) [PDF]

12. “Modular chemical sensor technologies for environmental monitoring and biomedical optical diagnostics”, F. K. Tittel, L. Dong, R. Lewicki, K. Liu, V. Spagnolo, Field Laser Applications in Industry and Research Conference, Murnau, Germany (September 13 -17, 2011) [PDF]

13. “Mid-Infrared Quantum Cascade Laser based Trace Gas Sensor technologies: Recent Advances and Applications,” F.K. Tittel, L. Dong, R. Lewicki, K. Liu, L. Gong, R. Griffin, V. Spagnolo, IRMMW-THz, Houston, TX (October 2-7, 2011) [PDF]

14 . “Environmental Ammonia Monitoring for Urban and Rural Area of Texas using an EC-QCL Based Sensor Platform”, R. Lewicki, L. Gong, R. J. Griffin, T. Day, F. K. Tittel, 2011 OSA Optics Photonics Congress, Austin, TX, (November 2-3 2011)

2010 Presentations:

1 . “Low-power Laser-based Carbon Monoxide Sensor for Fire and Post-fire Detection using a Compact Herriott Multipass Cell”, D. Thomazy, S. So, A. A. Kosterev, R. Lewicki, L. Dong, A. A. Sani, F. K. Tittel, Quantum Sensing and Nanophotonic Devices VII, San Francisco, CA, (January 24-28 2010) [PDF]

2 . “Quantum cascade Laser Absorption Spectroscopy of UF6 at 7.74 microns for Analytical Uranium Enrichment Measurements”, R. Lewicki, A. A. Kosterev, F. Toor, Y. Yao, C. Gmachl, T. Tsai, G. Wysocki, X. Wang, M. Troccoli, M. Fong, F.K. Tittel, Quantum Sensing and Nanophotonic Devices VII, San Francisco, CA, (January 24-28, 2010) [PDF]

3. “Ammonia sensor for environmental monitoring based on a 10.4 microns external-cavity quantum cascade laser,” R. Lewicki, A. Kosterev, D.M. Thomazy, L. Gong, R. Griffin, T. Day, F. Tittel, Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2010: San Diego, California United States (January 31–February 3, 2010) [PDF]

3. “Modulation cancellation method for detection of molecules with unresolved absorption bands,” A.A. Kosterev, D. Thomazy, L. Dong, F.K. Tittel, CLEO 2010, San Jose, CA (May 16-21, 2010) [PDF]

4 . “Comparison of Quartz-Enhanced Photoacoustic  Spectroscopy and Conventional Photoacoustic Spectroscopy Based Detectors”, L. Dong, R. Lewicki, F. K. Tittel, A. A. Kosterev, 2010 OSA Optics and Photonics Congress. San Diego, CA, (January 31 – February 3, 2010)

5. “Recent Advances in Mid-Infrared Semiconductor Laser based Trace Gas Sensor Technologies,” F.K. Tittel, L. Dong, L. Gong, R. Griffin, A.A. Kosterev, R. Lewicki, D. Thomazy, C. Zaugg, MirSens Workshop, Wroclaw, Poland (May 6-8, 2010) [PDF]

6. “Nitric oxide trace gas sensor based on quartz enhanced photoacoustic spectroscopy for chemical gas analysis,” V. Spagnolo, A.A. Kosterev, L. Dong, R. Lewicki, F.K. Tittel, 10th Int’l Conf. on Mid-Infrared Optoelectronics: Materials and Devices, Shanghai, China (September 5-9, 2010)

7. “Recent progress in infrared semiconductor laser based chemical sensing technologies,” F.K. Tittel, L. Dong, A.A. Kosterev, R. Lewicki, D. Thomazy, C.A. Zaugg, 10th Int’l Conf. on Mid-Infrared Optoelectronics: Materials and Devices, Shanghai, China (September 5-9, 2010) [Abstract: PDF, Poster: PDF]

8. “Recent advances of infrared semiconductor laser based chemical sensing technologies,” F.K. Tittel, L. Dong, A.A. Kosterev, R. Lewicki, D. Thomazy, Focused Photonics, Inc., Hungzhou, PR China (September 10, 2010)

2009 Presentations:

1 . “Continuous Monitoring of Nitric Oxide at 5.33 µm with an EC-QCL based Faraday Rotation Spectrometer: Laboratory and Field System Performance”, G. Wysocki, R. Lewicki, X. Huang, R. F. Curl, F. K. Tittel, Quantum Sensing and Nanophotonic Devices VI, San Jose, CA, (January 25-28 2009) [PDF]

2. “Quantum Cascade Laser Sources and Applications in Trace Gas Sensing,” F.K. Tittel, Y. Bakhirkin, R.F. Curl, A.A. Kosterev, R. Lewicki, S. So, D. Thomazy, G. Wysocki, Photonics West, San Jose, CA (Jan 24-28, 2009) [PDF]

3. “Laser spectroscopic trace-gas sensor networks for atmospheric monitoring applications,” S. So, A.A. Sani, L. Zhong, F.K. Tittel, G. Wysocki, ESSA Workshop ’09, San Francisco, CA (April 16, 2009) [PDF]

3. “Infrared semiconductor laser based spectroscopy and applications: present and future opportunities and challenges”, F. K. Tittel, R. F. Curl, L. Dong, J. Doty, R. Lewicki, A. A. Kosterev, D. Thomazy, Innovations Forum Photonik – Optische Sensorik, Kaiserpfalz/Goslar (May 12, 2009) [PDF]

4. “Ultra-compact Multipass Laser Absorption Spectroscopy Platform for Distributed Sensor Networks,” S.G. So, A.A. Sani, F.K. Tittel, G. Wysocki, CLEO 2009, Baltimore, MD (May 31 – June 5, 2009) [PDF]

5. “Real Time Ammonia Detection in Exhaled Human Breath with a Quantum Cascade Laser Based Sensor,” R. Lewicki, A.A. Kosterev, Y.A. Bakhirkin, D.M. Thomazy, J. Doty, L. Dong, F.K. Tittel, T.H. Risby, S. Solga, D. Kane, T. Day, CLEO 2009, Baltimore, MD (May 31 – June 5, 2009) [PDF]

6. “Portable Spectroscopic Carbon Dioxide Monitor for Carbon Sequestration Applications,” A.A. Kosterev, L. Dong, D. Thomazy, F.K. Tittel, I. Pavlovsky, K. Romanak, CLEO 2009, Baltimore, MD (May 31 – June 5, 2009) [PDF]

7. “Optimization of Microresonator Parameters for a Quartz-Enhanced Photoacoustic Spectroscopy Sensor,” L. Dong, A.A. Kosterev, D. Thomazy, F.K. Tittel, CLEO 2009, Baltimore, MD (May 31 – June 5, 2009) [PDF]

8. “Multi-gas Sensor for Flexible Oil Risers based on QEPAS Technology”, A. A. Kosterev, F. K. Tittel, N. Weppenaar, M. Kristiansen, 7th International Conference on Tunable Diode Laser Spectroscopy, Zermatt, Switzerland, (July 13 – 17 2009) [PDF]

9 . “Ammonia Detection in Exhaled Human Breath with a Quantum Cascade Laser Based QEPAS Sensor”, F. K. Tittel, R. Lewicki, A. A. Kosterev, Y. A. Bakhirkin, T. Day, J. Doty, L. Dong, M. Pushkarsky, D. Kane, T. Risby, S. Solga, D. M. Thomazy, 7th  International Conference on Tunable Diode Laser Spectroscopy, Zermatt, Switzerland, (July 13 – 17 2009) [PDF]

10 . “Broadly tunable external cavity quantum cascade lasers and applications”, G. Wysocki, T, Tsai. S. So, W. Wang, R. Lewicki, F. K. Tittel, D. Weidmann, 7th International Conference on Tunable Diode Laser Spectroscopy (TDLS-2009), Zermatt, Switzerland, (July 13-17 2009) [PDF]

11. “Status of the tunable diode laser spectroscopy contribution to international safeguards verification,” G. Grigoriev, A. Lebrun, A. Mantz, L. Mechold, A. Nadezhinskii, N. Peter-Stein, V. Rhyzhikov, F. Tittel, M. Zendel, TDLS 2009, Zermatt, Switzerland (July 13-17, 2009) [PDF]

12. “Laser based Quartz Enhanced Photoacoustics Spectroscopy for Trace Gase Sensing: Principles, Instrumentation and Applications”, F. K. Tittel, L. Dong, J. Doty, A. A. Kosterev, R. Lewicki, S. So, D. Thomazy, G. Wysocki, ICPP15, Leuven, Belgium, (July 19 – 23 2009) [PDF]

13 . “Infrared Trace Gas Sensing Technologies for Enviornmental, Biomedical, Industrial and Nuclear Security Applications”, F.K. Tittel, R. F. Curl, L. Dong,  J. Doty, R. Lewicki, A. Kachanov, A. A. Kosterev, D. Thomazy, FLAIR – 2009, Grainau, Germany, (September 6- 11 2009) [PDF]

14. “Recent Advances of Quartz-enhanced Photoacoustic Spectroscopy Sensor Technology”, F. K. Tittel, L. Dong, A. A. Kosterev, D. Thomazy,  FLAIR – 2009, Grainau, Germany, (September 6-11, 2009) [PDF]

15 . “Laser Spectroscopic Trace-gas Wireless Sensor Networks”, S. So, A. Amiri-Sani, L. Zhong, F. K. Tittel, G. Wysocki,  FLAIR – 2009, Grainau, Germany, (September 6-11, 2009) [PDF]

16 . “Airborne and ground-based measurements of atmospheric constituents by difference frequency and generation absorption spectroscopy”, A. Fried, P. Weibring, D. Richter, J. G. Walega, F. K. Tittel, FLAIR – 2009, Grainau, Germany, (September 6-11, 2009) [PDF]

17. “Carbon dioxide isotopologue laser absorption spectrometer,” D. Richter, B.P. Wert, A. Fried, P. Weibring, J.G. Walega, J.W.C. White, B.H. Vaughn, F.K. Tittel, FLAIR – 2009, Grainau, Germany, (September 6-11, 2009) [PDF]

18. “Recent Advances in Infrared Semiconductor, Laser based Chemical Sensing Technologies”, F.K. Tittel, L. Dong, A.A. Kosterev, R. Lewicki, D. Thomazy, NATO Science for Peace and Security Series B: Physics and Biophysics, Turunc, Turkey (November 3-6 2009) [Paper: PDF, Slides: PDF]

19. “Quartz-Enhanced Photo Acoustic Spectroscopy for Trace Gas Sensing,” F.K. Tittel, R.F. Curl, L. Dong, J. Doty, A.A. Kosterev, R. Lewicki, D. Thomazy, MEMS Alliance Symposium, Washington, D.C. (November 30, 2009) [PDF]

2008 Presentations:

1 . “Recent Advances and Applications of Mid-Infrared based Trace Gas Sensor Technology”, F. K. Tittel, Y. Bakhirkin, A. A. Kosterev, R. Lewicki, S. So, G. Wysocki, R. F. Curl, Quantum Sensing and Nanophotonic Devices , San Jose, CA, (January 20-23 2008) [PDF]

2 . “Infrared Semiconductor laser based spectroscopic sources: analytical & medical applications”, F. K. Tittel, R. Lewicki, G. Wysocki, Seminar on Vibrational Spectroscopy, Thermo Research Symposium, Houston, TX, (February 21, 2008)

3. “Applications of near- and mid-infrared semiconductor laser based trace gas sensors,” F.K. Tittel, Y.A. Bakhirkin, A.A. Kosterev, R.F. Curl, R. Lewicki, S. So, G. Wysocki, ADEM, Honolulu, HI (February 26, 2008) [PDF]

4. “Advanced infrared semiconductor laser based chemical sensing technologies,” F.K. Tittel, Y. Bakhirkin, R.F. Curl, A. Kosterev, R. Lewicki, S. So, G. Wysocki, 8th A.M. Prokhorov All Russian Seminar on Tunable Diode Laser spectroscopy (TDLS), Moscow, Russia (March 12, 2008) [Paper: PDF, Slides: PDF]

3. “Trace ethylene detection by means of QEPAS in near-infrared spectral range,” A.A> Kosterev, F.K. Tittel, S. Schilt, OSA Optics and Photonics Congress, St. Petersburg, FL (March 16-20, 2008) [PDF]

4. “Faraday modulation spectroscopy of Nitric Oxide at 5.33 microns with an external cavity quantum cascade laser,” G. Wysocki, R. Lewicki, J. Doty, R.F. Curl, F.K. Tittel, OSA Optics and Photonics Congress, St. Petersburg, FL (March 16-20, 2008) [PDF]

5. “Quantum cascade laser-based sensor platform for ammonia detection in exhaled human breath,” Y.A. Bakhirkin, A.A. Kosterev, G. Wysocki, F.K. Tittel, OSA Optics and Photonics Congress, St. Petersburg, FL (March 16-20, 2008) [PDF]

6. “Advanced infrared semiconductor laser based chemical sensing technologies: opportunities and challenges,” F.K. Tittel, Y. Bakhirkin, R.F. Curl, A.A. Kosterev, R. Lewicki, S. So, G. Wysocki, IEEE LEOS, Texas A&M, College Station, TX (April 8, 2008) [PDF]

7. “Advanced quartz-enhanced photoacoustic trace gas sensor for early fire detection,” A.A. Kosterev, F.K. Tittel, G. Bearman, SAE 2009 World Congress, Cobo Center, Detroit, MI (April 14-17, 2008) [PDF]

6.“Near-Infrared QEPAS Sensor for Trace Ethylene Monitoring at Atmospheric Pressure”, S. Schilt, A. A. Kosterev, F.K. Tittel, CLEO 2008, San Jose, CA (May 4-9, 2008) [PDF]

7. “Ultra-sensitive detection of Nitric Oxide at 5.33 µm using an External Cavity QCL based Faraday Rotation Spectroscopic Sensor Platform”, R. Lewicki, G. Wysocki, J. Doty, R.F. Curl, F.K. Tittel, CLEO 2008, San Jose, CA (May 4-9, 2008) [PDF]

8. “Development of Laser based Spectroscopic Trace-Gas Sensors for Environmental Sensor Networks and Medical Exposure Monitors,” S.G. So, D. Chang, O. Al’Rifai, G. Wysocki, A.A. Kosterev, F.K. Tittel, CLEO 2008, San Jose, CA (May 4-9, 2008) [PDF]

9. “Quartz-enhanced photoacoustic spectroscopy of HCN from 6433 to 6613 cm-1”, W. Zhao, X. Gao, K. Liu, F.J.M. Harren, W. Chen, F.K. Tittel, CLEO 2008, San Jose, CA (May 4-9, 2008) [PDF]

10. “Trends and Innovation of Infrared Semiconductor Laser based Chemical Sensing Technologies,” F.K. Tittel, Y. Bakhirkin, R.F. Curl, A.A. Kosterev, R. Lewicki, S. So, G. Wysocki, Anhui Institute of Optics and Fine Mechanics (AIOFM), Hefei, China (July 7, 2008) [PDF]

11. “Advanced Infrared Semiconductor Laser based Chemical Sensing Technologies: Opportunities and Challenges,” F.K. Tittel, Y. Bakhirkin, R.F. Curl, A.A. Kosterev, R. Lewicki, S. So, G. Wysocki, Zhejiang University, Hangzhou, China (July 7, 2008) [PDF]

11. ” Mid-infrared QEPAS for TATP detection”, C. Bauer, U. Willer, A. Pohlkoetter, D. Kosynkin, F. K. Tittel, W. Schade, 3rd Int’l Workshop on Infrared Plasma Spectroscopy (IPS 2008), Greifswald, Germany, (July 23-25, 2008) [PDF]

12. “Recent progress of semiconductor laser-based infrared spectroscopic techniques,” F.K. Tittel, Y. Bakhirkin, R.F. Curl, A.A. Kosterev, R. Lewicki, D. Thomasz, S. So, 3rd Int’l Workshop on Infrared Plasma Spectroscopy (IPS 2008), Greifswald, Germany, (July 23-25, 2008) [PDF]

13. “Recent Advances of infrared semiconductor laser-based chemical sensing technologies”, F. K. Tittel, Y. Bakhirkin, R. F. Curl, A. A. Kosterev, R. Lewicki, D. Thomasz, S. So, G. Wysocki, 9th International Conference on Mid-Infrared Optoelectronics: Materials and Devices MIOMD-IX, Freiburg, Germany, (September 7-11, 2008) [PDF]

14. “Advanced Infrared Semiconductor Laser based Chemical Sensing Technologies”, F. K. Tittel, Y. Bakhirkin, R. F. Curl, A. A. Kosterev, R. Lewicki, D. Thomasz, S. So, G. Wysocki, International Quantum Cascade Lasers School & Workshop (IQCLSW), Monte Verita (Ascona), Switzerland, (September 14-19, 2008) [PDF]

15. “Recent Advances of Semiconductor Laser based Infrared Spectroscopic Techniques,” F.K. Tittel, Y. Bakhirkin, R.F. Curl, J. Dotty, A.A. Kosterev, R. Lewicki, S. So, D. Thomasz, G. Wysocki, University of Texas, Austin, TX (October 17, 2008) [PDF]

16. “Advanced Infrared Semiconductor Laser based Chemical Sensing Technologies”, F. K. Tittel, Y. Bakhirkin, R. F. Curl, A. A. Kosterev, R. Lewicki, S. So, G. Wysocki, 10th A.M Prokhorov All-Russian Seminar on Tunable Diode Laser Spectroscopy (TDLS), Moscow, Russia (October 29, 2008) [PDF]

17. “Current Status of Quantum Cascade Lasers for UFLS at 7.7, 11.8 and 16 µm,” F.K. Tittel, IAEA-TDLS WG, Vienna, Austria (December 5, 2008) [PDF]

2007 Presentations:

1. “Dual interband cascade laser based trace gas sensor for studying urban air pollution,” G. Wysocki, Y.A. Bakhirkin, M. Fraser, S. So, R. Lewicki, F.K. Tittel, R.Q. Yang, Photonics West 2007, San Jose, CA (January 20-25, 2007) [PDF]

2. “Recent advances and applications of semiconductor laser based gas sensor technology,” F.K. Tittel, Y.A. Bakhirkin, R.F. Curl, A.A. Kosterev, R. Lewicki, M. McCurdy, S. So, G. Wysocki, IEEE LEOS, Dallas, TX (March 8, 2007) [PDF]

3. “Widely Tunable, High Power, Mode-hop Free, CW External Cavity Quantum Cascade Lasers at 5.3 & 8.5 microns,” G. Wysocki, R.F. Curl, F.K. Tittel, F. Capasso, M. Diehl, M. Troccoli, G. Hoefler, R. Maulini, J. Faist, CLEO/QELS 2007 Technical Conference: Baltimore Convention Center, Baltimore, MD (6-11 May 2007) [PDF]

4. “Recent advances of widely tunable quantum cascade laser technology for chemical sensing applications,” G. Wysocki, R. Lewicki, F.K. Tittel, 8th Int’l Conf. on Mid-Infrared Optoelectronics: Materials and Devices, Bad Ischl, Austria (May 14-16, 2007) [PDF]

5. “Laser based chemical sensor technology: recent advances and applications,” F.K. Tittel, UDLA: Puebla, Mexico (June 8-11, 2007) [PDF]

6. “Application of Quantum Cascade Lasers to Trace Gas Analysis”,  A. A. Kosterev, F. K. Tittel, G. Wysocki, Y. Bakhirikin, S. So, R. F. Curl, 6th International Conference on Tunable Diode Laser Spectroscopy [TDLS – 2007] Reims, France, (July 9-13 2007) [PDF]

7. “Sensors for chemical analysis of trace gases based on widely tunable Qunatum Cascade Lasers,” G. Wysocki, R. Lewicki, A.A. Kosterev, R.F. Curl, F.K. Tittel, 6th International Conference on Tunable Diode Laser Spectroscopy [TDLS – 2007] Reims, France, (July 9-13 2007) [PDF]

8. “Off-Axis Integrated Cavity Output Spectroscopy based H2S Trace Detection in the Near-Infrared,” W. Chen, A.A. Kosterev, F.K. Tittel, 6th International Conference on Tunable Diode Laser Spectroscopy [TDLS – 2007] Reims, France, (July 9-13 2007) [PDF]

9. “Recent advances and applications of semiconductor laser based gas sensor technology,” F.K. Tittel, Y.A. Bakhirkin, R.F. Curl, A.A. Kosterev, R. Lewicki, S. So, G. Wysocki, 6th International Conference on Tunable Diode Laser Spectroscopy [TDLS – 2007] Reims, France, (July 9-13 2007) [PDF]

10. “Recent advances and applications of semiconductor laser based gas sensor technology”, F. K. Tittel, Y. A. Bakhirkin, R. F. Curl, A. A. Kosterev, R. Lewicki, S. So, G. Wysocki, Field Laser Applications in Industry and Research (FLAIR-2007) Pratalino, Italy (September 3-7, 2007) [PDF]

11. “High-Precision Carbon Isotope Laser Absorption Spectrometer (CILAS),” D. Richter, B. P Wert, J. G. Walega, A. Fried, P . Weibring, F. K. Tittel, Field Laser Applications in Industry and Research (FLAIR-2007) Pratalino, Italy (September 3-7, 2007) [PDF]

12. “Widely tunable external cavity quantum cascade lasers for high resolution spectroscopy and chemical sensing,” G. Wysocki, R. Lewicki, F. K. Tittel, Field Laser Applications in Industry and Research (FLAIR-2007) Pratalino, Italy (September 3-7, 2007) [PDF]

13. “Tunable mid-IR external cavity quantum cascade laser based spectroscopic sensor for acetone detection,” Y. A. Bakhirkin, A. A. Kosterev, F. K. Tittel, T. Day, M. Pushkarsky, SPIE Optics East, Boston, MA (September 9-12, 2007) [PDF]

14. “QEPAS based detection of broadband absorbing molecules using a widely tunable external cavity quantum cascade laser at 8.4 microns,” R. Lewicki, G. Wysocki, A. A. Kosterev, F. K. Tittel, SPIE Optics East, Boston, MA (September 9-12, 2007) [PDF]

15. “Development of broadband atmospheric absorption sensor based on quartz-enhanced photoacoustic spectroscopy,” A. A. Kosterev, F. K. Tittel, A. J. Henderson, C. Brooks, SPIE Optics East, Boston, MA (September 9-12, 2007)

16. “Recent Advances of Trace Gas Sensors based on Infrared Semiconductor Lasers: Global Opportunities and Challenges,” F.K. Tittel, Lund Univeristy, Lund, Sweden (October 18, 2007) [PDF]

17. “Advanced embedded control and data acquisition systems for laser-based quartz-enhanced photoacoustic spectroscopy”, S. G. So, O. Al Rifai, G. Wysocki, A. A. Kosterev, F. K. Tittel, Sixth IEEE Conrence on Sensors – 2007, Atlanta, GA, (October 28-31, 2007) [PDF]

18. “Quantum cascade laser based trace gas technology: recent advances and applications,” F.K. Tittel, Y. Bakhirkin, R.F. Curl, A.A. Kosterev, R. Lewicki, S. So, G. Wysocki, Sixth IEEE Conrence on Sensors – 2007, Atlanta, GA, (October 28-31, 2007) [PDF]

19. “Quantum cascade lasers for chemical sensing”, F. K. Tittel, Y. A. Bakhirkin, A. A. Kosterev, R. Lewicki, S. So, G. Wysocki, R. F. Curl, Mini-Symposium on Photonics and Optics in Sustainable Energy, Grasmere, UK, (November 5-8 2007) [PDF]

2006 Presentations

1. “Semiconductor Laser based Trace Gas Sensor Technology: Advances and Opportunities,” F.K. Tittel, Y. Bakhirkin, A.A. Kosterev, M. McCurdy, S.G. So, G. Wysocki, R.F. Curl, Oklahoma University, Norman, OK (January 23, 2006) [PDF]

2. “Recent Advances and Applications of Semiconductor Laser based Gas Sensor Technology,” F.K. Tittel, Y. Bakhirin, A.A.Kosterev, M. McCurdy, S.G. So, D. Weidmann, G. Wysocki, R.F. Curl, LACSEA 2006, Incline Village, NV (February 5-9, 2006) [PDF]

3. “Development of optical trace gas monitoring technology for NASA human space flight,” G. Wysocki, J.H. Miller, B. McAndrew, A.A. Kosterev, Y.A. Bakhirkin, F.K. Tittel, R.Q. Yang, Habitation 2006, Orlando, FL (February 5-8, 2006) [PDF]

3.“Trace HCN Quantification Using Quartz Enhanced Photoacoustic Spectroscopy”, A. Kosterev, F.K. Tittel, CLEO 2006, San Jose, CA (May 21-26, 2006) [PDF]

4. “CO2 Detection at 2 microns using Quartz Enhanced Photoacoustic Spectroscopy,” G. Wysocki, A.A. Kosterev, F.K. Tittel, CLEO 2006, San Jose, CA (May 21-26, 2006) [PDF]

5. “Continuous-Wave Difference-Frequency Generation in Periodically Poled RbTiOAsO4 Crystal and Application to Isotopic Analysis of Methane,” X. Gao, L. Deng, W. Chen, D. Boucher, F.K. Tittel,  CLEO 2006, San Jose, CA (May 21-26, 2006) [PDF]

6. “QEPAS (QVR L-PAS) based gas sensor module development,” F.K. Tittel, Y.A. Bakhirkin, A.A. Kosterev, S. So, G. Wysocki, PNNL L-PAS Team Meeting, Los Angeles, CA (May 22, 2006) [PDF]

6. “L-PAS based gas sensor development at Rice: January 2005-May 2006,” F.K. Tittel, Y.A. Bakhirkin, R.F. Curl, A.A. Kosterev, R. Lewicki, S. So, G. Wysocki, PNNL L-PAS Team Meeting, Laguna Beach, CA (June 12, 2006) [PDF]

6. “Laser based chemical sensor technology: recent advances and applications,” F.K. Tittel, Y.A. Bakhirkin, A.A. Kosterev, G. Wysocki, R.F. Curl, 6th Int’l Symp. on Advanced Environmental Monitoring (June 27-30, 2006) [PDF]

7. “Recent advances and applications of semiconductor laser based gas sensor technology,” F.K. Tittel, Y.A. Bakhirkin, R.F. Curl, A.A. Kosterev, R. Lewicki, M. McCrudy, S. So, G. Wysocki, Universitaet Duesseldorf, Duesseldorf, Germany (July 4, 2006) [PDF]

8. “High resolution spectroscopy and trace-gas detection with thermoelectrically-cooled cw quantum cascade lasers”, F. K. Tittel, Y. Bakhirkin, R. F. Curl, A. A. Kosterev, R. lewicki, M. McCurdy, G. Wysocki, R. Maulini, J. Faist, L. Diehl, M. Toroccoli, F. Capasso, D. Bour, S. Corzine, J. Zhu, G. Hoefler, 2nd International Workshop on Quantum Cascade Lasers, Rosa Marina, Ostuni, Italy, (September 5-10, 2006) [PDF]

9. “Quartz enhanced Photoacoustic Spectroscopy for Trace Gas Sensing,” A.A. Kosterev, F.K. Tittel, 232nd ACS Meeting, San Francisco, CA (September 11-14, 2006) [PDF]

10. “Trace acetylene sensing by means of quartz-enhanced photoacoustic spectroscopy,” A. A. Kosterev, T. S. Mosely, F. K. Tittel,  J. D. Tate, L. D. Le, SPIE Optics East, Photonics for Applications in Industry, Life Sciences, and Communications, Boston, MA (October 1-4, 2006)

11. “Tunable Diode Laser and Difference Frequency Generation Absorption Spectrometers for Highly Sensitive Airborne Measurements of Trace Atmospheric Constituents”, A. Fried, P. Weibring, D. Richter, J. Walega, C. Roller, F. K. Tittel, Chemical and Biological Sensors for Industrial and Environmental Monitoring II, Boston, MA, (October 3-4 2006) [PDF]

12. “Ultra-compact high efficiency, quartz-enhanced photoacoustic spectroscopy based trace gas sensor platform”, S. G. So, A. A. Kosterev, F. K. Tittel, LEOS 2006, Montreal, Canada, (October 29- November 2 2006) [PDF]

13. “Recent Advances and Applications of Semiconductor Laser based Gas Sensor Technology,” F.K. Tittel, Y. Bakhirkin, R.F. Curl, A.A. Kosterev, R. Lewicki, M. McCurdy, S. So, G. Wysocki, Radboud University, Nijmegen, Netherlands (November 27, 2006) [PDF]

2005 Presentations:

1.“Quantum cascade laser based trace-gas sensors for human breath analysis,” G. Wysocki and F.K. Tittel, 35th Winter Colloquium on the Physics of Quantum Electronics, Snowbird, Utah (January 2-6, 2005).

2. “Recent developments of quantum cascade laser based trace gas sensor technology: opportunities and challenges,” F.K. Tittel, Y. Bakhirkin, R.F. Curl, A.A. Kosterev, S. So, D. Weidmann, G. Wysocki, Optoelectronics 2005, Photonics West, San Jose, CA (January 22-27, 2005). [PDF]

3. “Optical gas sensing based on quartz enhanced photo acoustic spectroscopy: fundamentals and applications,” A.A. Kosterev and F.K. Tittel, Pitcon, Orlando, FA (February 27-March 4, 2005) [PDF]

4. “Advances in the Performance Assessment of a Tunable Diode Laser Absorption Spectrometer for Airborne Measurements of CHzO,” C.B. Roller, F.K. Tittel, A. Fried, J. Walega, P. Weibring, D. Richter, CLEO/QELS, Photonic Applications Systems Technologies, Baltimore, MD (May 22-27, 2005) [PDF]

5. “V-T Relaxation Related Aspects of Quartz-Enhanced Photoacoustic Spectroscopy,” A.A. Kosterev, F.K. Tittel, CLEO/QELS, Photonic Applications Systems Technologies, Baltimore, MD (May 22-27, 2005) [PDF]

6. “Development of a pulsed quantum cascade laser based CO sensor using advanced signal processing techniques,” S.G. So, G. Wysocki, D. Weidmann, F.K. Tittel, CLEO/QELS, Photonic Applications Systems Technologies, Baltimore, MD (May 22-27, 2005) [PDF]

7. “Recent developments of chemical sensors based on quartz enhanced photo acoustic spectroscopy,” F.K. Tittel, A.A. Kosterev, Y. Bakhirkin, S. So, and G. Wysocki, ES 2005, Houston, TX (June 1, 2005). [PDF]

8. “Future impacts of quantum cascade lasers on spectroscopy,” R.F. Curl, A.A. Kosterev, and F.K. Tittel, 60th Ohio State University International Symposium on Molecular Spectroscopy, Ohio (June 20-24, 2005).

9. “Ultra sensitive gas detection by quartz enhanced photoacoustic spectroscopy,” F. K. Tittel, Gordon Research Conference on Photoacoustic and Photothermal Phenomena, Trieste, Italy (June 26-July 1, 2005).

10. “Quartz enhanced photoacoustic spectroscopy: a technology for compact atmospheric gas sensors,” A.A. Kosterev and F.K. Tittel, XII-th Joint International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, Tomsk, Russia (June 27-30, 2005).

11. “Quartz enhanced photoacoustic spectroscopy: shrinking the spetroscopic gas sensor,” A.A. Kosterev and F.K. Tittel, XII-th Joint International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, Tomsk, Russia (June 27-30, 2005) [PDF]

12. “Lead-salt and difference frequency generation IR spectrometers: performance comparisons and common requirements for ultra sensitivity airborne measurements.” A. Fried, D. Richter, R. Webbing, J. Walega, C. Roller, and F.K. Tittel, 5th International Conference on Tunable Diode Laser Spectroscopy, Florence, Italy (July 11-15, 2005) [PDF]

13. “Optical gas sensing based on quartz enhanced photo acoustic spectroscopy: fundamentals and applications,” A.A. Kosterev and F.K. Tittel, 5th International Conference on Tunable Diode Laser Spectroscopy, Florence, Italy (July 11-15. 2005).

14. “Semiconductor laser based trace gas sensor technology: advances and challenges,” F.K. Tittel, A.A. Kosterev, Y. Bakhirkin, S.G. So, and G. Wysocki, International Congress on Optics and Optoelectronics, Warsaw, Poland (August 28-September 2, 2005).

15. “Trace gas sensing based on quartz enhanced photo acoustic spectroscopy,” F.K. Tittel, A.A. Kosterev, Y. Bakhirkin, G. Wysocki, T. Ajtai, and S. So, R.F. Curl, Int’l congress of Acoustics, Budapest, Hungary (August 28-September 2, 2005) [PDF]

17. “Widely tunable external cavity quantum cascade laser for high resolution spectroscopy and trace-gas detection”, G. Wysocki, R. F. Curl, F. K. Tittel, R. Maulini, J. Bulliard, J. Faist, Optics East, Boston, MA, (October 23-26, 2005)

18. “Recent developments of chemical sensors based on quartz-enhanced photoacoustic spectroscopy: fundamentals and applications (Invited Paper)”, F. K. Tittel, A. A. Kosterev, Y. A. Bakihirkin, T. Ajtai, S. So, Optics East, Boston, MA, (October 23-26, 2005).

19. “Room-temprature continuous wave quantum cascade laser-based niic oxide measurements using integrated cavity output spectroscopy”, Y. Bakhirkin, F. K. Tittle, S. Blaser, D. A. Yarekha, M. Giovanini, J. Faist, Optics East, Boston, MA, (October 23-26, 2005)

20. “Semiconductor laser based trace gas sensor technology: recent advances and applications”, F. K. Tittel, G. Wysocki, A. A. Kosterev, Y. Bakhirkin, NATO Advanced Research Workshop on Middle Infrared Coherent Sources (MICS) 2005, Barcelona, Spain, (November 6-11, 2005) [PDF]

21. “Mode-hop free wavelength scanning of a broadly tunable thermoelectrically cooled cw quantum cascade laser in external cavity configuration”, G. Wysocki, R. F. Curl, F. K. Tittel, R. Maulini, J. M. Bulliard, J. Faist, NATO Advanced Research Workshop on Middle Infrared Coherent Sources (MICS) 2005, Barcelona, Spain, (November 6-11, 2005) [PDF]

22. “Quartz enhanced photoacoustic spectroscopy for trace gas sensing: principles and implementation,” F.K. Tittel, Director’s Colloquium, Westinghouse Savannah River Company, Aiken, SC (December, 2005) [PDF]

2004 Presentations:

1.“Current applications of quantum cascade laser in trace gas analysis and chemical  sensing,” F.K. Tittel, Y. Bakhirkin, R.F. Curl, A.A. Kosterev, M. McCurdy, C. Roller, S. So, D. Weidmann, and G. Wysocki, International Workshop on Quantum Cascade Lasers, Sevilla, Spain (January 4-8, 2004).

2. “Mid-infrared quantum cascade laser sensors for gas analysis and medical diagnostics,” F.K. Tittel, A.A. Kosterev, Y.A. Bakhirkin, C. Roller, D. Weidmann, R.F. Curl, SPIE Photonics West 2004, San Jose, CA (January 24-29, 2004) [PDF]

3. “Recent advances in quartz-enhanced gas-phase photo acoustic spectroscopy,” A.A. Kosterev, F.K. Tittel, OSA Topical Meeting on Laser Applications to Chemical and Environmental Analysis (LACSEA), Annapolis, MD (Feb. 9-11, 2004). [PDF]

4. “Off-axis integrated cavity output spectroscopy for nitric oxide detection in human breath using a quantum cascade laser,” M.R. McCurdy, Y.A. Bakhirkin, C. Roller, A.A. Kosterev, R.F. Curl, F.K. Tittel, OSA Topical Meeting on Laser Applications to Chemical and Environmental Analysis (LACSEA), Annapolis, MD (Feb. 9-11, 2004). [pdf]

5. “Off-axis integrated cavity output spectroscopy for nitric oxide detection in human breath using a quantum cascade laser,” M.R. McCurdy, Y.A. Bakhirkin, C. Roller, A.A. Kosterev, R.F. Curl, F.K. Tittel, 21st Annual Houston Conference on Biomedical Engineering Research (HSEMB), Houston, TX (Feb. 12-13, 2004). [pdf]

6. “Quantum Cascade Laser Spectrometer for Trace-Gas Detection of Exhaled Carbonyl Sulfide,” M. McCurdy, G. Wysocki, C. Roller, S. So, D. Weidmann, R.F. Curl, F.K. Tittel, R. Bag, M.C. Paraguya, 21st Annual Houston Conference on Biomedical Engineering Research (HSEMB), Houston, TX (Feb. 12-13, 2004) [PDF]

7. “Early detection of acute rejection in lung transplant recipients using laser-based detection of exhaled nitric oxide,” M.R. McCurdy, Y.A. Bakhirkin, A.A. Kosterev, R.F. Curl, F.K. Tittel, R. Bag, M.C. Paraguya, 21st Annual Houston Conference on Biomedical Engineering Research (HSEMB), Houston, TX (Feb. 12-13, 2004) [PDF]

8. “Development of quantum cascade laser based biosensor technology,” T.L. Harman, Y. Bakhirkin, and F.K. Tittel, Institute of Space System Operations (ISSO), NASA Review, University of Houston, Clear Lake, TX (March 9, 2004).

9. “Off-axis integrated vanity output spectroscopy for nitric oxide detection in human breath using a quantum cascade laser,” M. McCurdy, Y. Bakhirkin, A.A. Kosterev, R.F. Curl, M.G. Allen, F.K. Tittel, Am. Acad. of Allergy, Asthma and Immunology (AAAAI) Meeting, San Francisco, CA (March 19-23, 2004).

10. “Compact quantum cascade laser based 13CO2/12CO2 isotopic radiometer for field measurements of volcanic gases,” F.K. Tittel, D. Weidmann, C. Roller, R. F. Curl, K. Uehara, International Conference on Optical Diagnostic and Monitoring (OPDIMON), Naples, Italy (March 19-23, 2004). [PDF]

11. “Gas sensing with 9 microns thermoelectrically-cooled quasi-cw distributed feedback quantum cascade laser,” D. Weidmann, A.A. Kosterev, F.K. Tittel, T. Aellen, M. Beck, S. Blaser, D. Hofstetter, J. Faist, Conference on Lasers and Electro-Optics/International Quantum Electronics Conference (CLEO/IQEC 2004), San Francisco, CA (May 16-21, 2004).

12. “Quantum cascade laser spectrometer for trace-gas detection of exhaled carbonyl sulfide,” G. Wysocki, S. So, M. McCurdy, C. Roller, D. Weidmann, P. Frantz, R.F. Curl, F.K. Tittel,  Conference on Lasers and Electro-Optics/International Quantum Electronics Conference (CLEO/IQEC 2004), San Francisco, CA (May 16-21, 2004). [pdf]

13. “Multi-species QEPAS based gas sensing using a wavelength-programmable diode laser source,” A.A. Kosterev, D. Weidmann, F.K. Tittel, N. Ryan, D. McDonald, Conference on Lasers and Electro-Optics/International Quantum Electronics Conference (CLEO/IQEC 2004), San Francisco, CA (May 16-21, 2004). [pdf]

14. “Wavelength modulation off-axis integrated cavity output spectroscopy for biogenic NO detection in human breath,” Y.A. Bakhirkin, A.A. Kosterev, C. Roller, R.F. Curl, F.K. Tittel, Conference on Lasers and Electro-Optics/International Quantum Electronics Conference (CLEO/IQEC 2004), San Francisco, CA (May 16-21, 2004). [pdf]

15. “Applications of quantum cascade lasers in trace gas analysis and chemical sensing,” F.K. Tittel, Y. Bakhirkin, R.F. Curl, A.A. Kosterev, S. So, D. Weidmann, G. Wysocki, 6th International Conference on Mid-Infrared Optoelectronics Materials and Devices (MIOMD-VI), St. Petersburg, Russia (June 28-July 1, 2004) [PDF]

16. “Development of compact quantum cascade laser based trace gas sensors,” S.G. So, G. Wysocki, D. Weirdmann, J.P. Frantz, A.A. Kosterev, R.F. Curl, F.K. Tittel, 6th International Conference on Mid-Infrared Optoelectronics Materials and Devices (MIOMD-VI), St. Petersburg, Russia (June 28-July 1, 2004) [PDF]

17. “Development of optical trace gas monitoring technology for NASA human space flight,” J.H. Miller, A.R. Awtry, B. McAndrew, F.K. Tittel, A.A. Kosterev, R.Q. Yang, C.J. Hill, C.M. Wong, B. Yang, G. Bearman, 34th International Conference on Environmental Systems (ICES 2004), Colorado Springs, CO (July 19-22, 2004).

18. “Quartz-enhanced photoacoustic spectroscopy with semiconductor lasers: the road to ultracompact trace gas sensor,” A.A. Kosterev, Y.A. Bakhirkin, F.K. Tittel, 4th International Symposium on Modern Problems of Laser Physics (MPLP2004), Novosibirsk, Russia (Aug 22-27,2004).

19. “Industrial applications of pulsed quantum cascade laser analyzer for trace-gas monitoring,” G. Wysocki, A.A. Kosterev, S. So, F.K. Tittel, XV Int’l Symposium on Gas Flow Chemical Lasers and High Power Laser Conference (GCL/HPL), Prague, Czech Republic (Aug 30-Sept 3, 2004) [paper: PDF, slides: PDF]

20. “Compact quantum cascade laser based 13CO2/12CO2 isotopic radiometer for field measurements of volcanic gases: opportunities and challenges,” F.K. Tittel, D. Weidmann, C. Roller, R.F. Curl, K. Uehara, Workshop on Stable Isotope Ratio Measurements by Means of Infrared Spectroscopy (SIRIS), Vienna, Austria (Sept. 6-8, 2004). [PDF]

21. “Infrared laser based sensor technology for 13CO2/12CO2 isotopic ratio measurements: opportunities and challenges”, F. K. Tittel, D. Weidmann, C. Roller, G. Wysocki, R. F. Curl, ESF-IAEA International Workshop on Stable Isotope Ratio Infrared Spectormetry [SIRIS 2004], Vienna, Austria, (September 6-8 2004) [PDF]

22. “Future Directions of Stable Isotopic Ratio Infrared Spectrometry (SIRIS),” F.K. Tittel, C.B. Roller, D. Weidmann, SIRIS 2004, Vienna, Austria (Sept. 6-8, 2004) [PDF]

23. “Development of QCL based sensor technology for trace gas monitoring applications,” F.K. Tittel, Y. Bakhirkin R.F. Curl, A.A. Kosterev, S. So, D. Weidmann, G. Wysocki, 5th Quantum Cascade Laser Workshop, Fraunhofer Institute for Physical Measurement Techniques, Freiburg, Germany (Sept. 23-24, 2004) [PDF]

24. “Exhale human breath analysis by means of quantum cascade laser based gas sensors,” G. Wysocki, M. McCurdy, S. So, C. Roller, F.K. Tittel, Breath Gas Analysis for Medical Diagnostics, Dornbirn, Austria (Sept. 23-26, 2004).

2003 Presentations:

1. “Compact Gas Sensors Based On Quantum Cascade Lasers for Industrial Process Analysis,” F. K. Tittel, A. A. Kosterev, Y. Bakhirkin, IFPAC Scottsdale, Phoenix, AZ (January 21-24, 2003).

2. “Applications of Quantum Cascade Lasers,” F. K. Tittel, A. A. Kosterev, Y. Bakhirkin, C. Roller, R. F. Curl, C. Gmachl, F. Capasso, American Physical Society Meeting, Austin, TX (March 2-5, 2003).

3. “Spectroscopic gas sensing with a short high finesse optical cavity: a comparison of different approaches”, Y. A. Bakhirkin, A. A. Kosterev, F. K. Tittel, Conference on Lasers and Electro-optics (CLEO/QELS), Baltimore, MD (June 3-5 2003)

4. “Atmospheric Formaldehyde Monitoring in the greater Houston Area”, J. Chen, S. G. So, M. P. Fraser, R. F. Curl, F. K. Tittel, Conference on Lasers and Electro-optics (CLEO/QELS), Baltimore, MD (June 3-5 2003)

5. “Development of a QC-laser based system for industrial gas monitoring,” A.A. Kosterev, C. Roller, F.K. Tittel, W. Flory, Conference on Lasers and Electro-optics (CLEO/QELS), Baltimore, MD (June 3-5 2003) [PDF]

6. “QC laser-based sensor for 13CO2/12CO2 isotopic ratio measurement: preliminary studies,” D. Weidmann, C. Roller, K. Uehara, F.K. Tittel, PSI/RICE Workshop, Boston, MA (June 6, 2003) [PDF]

7. “Trace Gas Monitoring Using Infrared Laser Spectroscopy,” R. F. Curl, and F. K. Tittel, International Symposium on Sensor Science – I3S, Paris, France (June 16-20, 2003).

8 . “Chemical sensing with quantum cascade lasers”, F. K. Tittel, A. A. Kosterev, Y. A. Bakhirkin, C. Roller, D. Weidmann, R. F. Curl, TDLS – 2003, Zermatt, Switzerland, (July 14-18 2003) [PDF]

9. “Quantum cascade laser based sensor for carbonyl sulfide”, C. D. Roller, A. A. Kosterev, D. Weidmann, R. F. Curl, F. K. Tittel, K. Uehara, C. Gmachl, Frontiers in Optics – Laser Science XIX, Tuscon, AZ, (October 5-9 2003)

10. “Off-axis integrated cavity output spectroscopy for nitric oxide detection in human breath using a quantum cascade laser”, Y. A. Bahirkin, A. A. Kosterev, R. F. Curl, M. G. Allen, F. K. Tittel,  Frontiers in Optics – Laser Science XIX, Tuscon, AZ, (October 5-9 2003)

11. “Chemical Sensors based on Quantum Cascade Lasers,” F.K. Tittel., A.A. Kosterev, Y.A. Bakhirkin, C.B. Roller, D. Weidmann, R.F. Curl, C. Gmachl, D.L. Sivco, IEEE Sensors 2003, Toronto, Canada (October 22-24, 2003)

12. “Quantum Cascade Laser Spectrometer for Carbonyl Sulfide Isotopomer Analysis”, C. B. Roller, D. Weidmann, A. A. Kosterev, F. K. Tittel, R. F. Curl, K. Uehara, 2nd International Symposium on Isotopomers (ISI 2003) Stresa, Italy, (November 4-6, 2003) [PDF]

13. “Development of a 4.3 µm quantum cascade laser based 13CO2/12CO2 isotopic ratio sensor”, D. Weidmann, C. Roller, F. K. Tittel, R. F. Curl, K. Uehara, C. Oppenheimer, P. DeNatale, 2nd International Symposium on Isotopomers (ISI 2003) Stresa, Italy, (November 4-6, 2003) [PDF]

2002 Presentations:

1 . “Tunable Telecom Diode Laser based mid-IR source at 2.64 microns”, D. Richter, A, Fried, G. S. Tyndall, E. Oteiza, M. Erdeyi, F. K. Tittel, OSA Advanced Solid State Lasers, Quebec City, Canada (February 3-6, 2002) [PDF]

2 . “All-telecom diode laser based mid-IR source for spectroscopic detection of HF, H2O and HDO”, D. Richter, A. Fried, G S. Tyndall, E. Oteiza, M. Erdelyi, F. K. Tittel, Laser Applications to Chemical and Environment Analysis, Boulder, CO, (February 7-10 2002) [PDF]

3 . “Spectroscopic trace gas detection with pulsed quantum cascade lasers”, A. A. Kosterev, F. K. Tittel, S. Wehe, D. M . Sonnenfroh, M. G. Allen, R. Koehler, C. Gmachl, F. Capasso, D. L. Sivco, A. Y. Cho, pplications to Chemical and Environment Analysis, Boulder, CO, (February 7-10 2002) [PDF]

4 . “Chemical Sensing with a Pulsed 16 Microns QC-DFB Laser”, A. A. Kosterev, F. K. Tittel, M. Rochat, M. Beck, J. Faist, 2002 CLEO, Long Beach, CA, (May 19-24 2002) [PDF]

5. “Trace Gas Concentration Measurements Using Quantum Cascade Lasers,” A. A. Kosterev, F. K. Tittel, C. Gmachl, and F. Capasso, IQEC/LAT, Moscow, Russia (June 22-28, 2002). [PDF]

6. “Chemical Sensors Based on Quantum Cascade Lasers,” F. K. Tittel, A. A. Kos­terev, M. Rochat, M. Beck, J. Faist, 2002 SPIE International Symposium on Optical Science and Technology, “Diode Lasers and Applications,” Seattle, WA (July 7-11, 2002). [PDF]

7. “Tunable Optical Fiber Pumped Difference-Frequency Laser Sources: State of the Art,” D. Richter, A. Fried, F.K. Tittel,2002 SPIE International Symposium on Optical Science and Technology, “Diode Lasers and Applications,” Seattle, WA (July 7-11, 2002).

8. “Compact Gas Sensors Based on Pulsed Quantum Cascade Lasers for Industrial Applications,” F.K. Tittel, A.A. Kosterev, C. Gmachl, F. Capasso, The XIV Int’l Symp. on Gas Flow and Chemical Lasers and High Power Laser Conference, Wroclaw, Poland (August 26-30, 2002) [PDF]

9. “Wavelength Modulated Photoacoustic Spectroscopy using Quantum Cascade Lasers,” M.E. Paige, S.M. Massick, D. Bomse, A.A. Kosterev, F.K. Tittel, 5th Int’l Conf. on Mid-Infrared Opto-Electronic Materials and Devices (MIOMD-V), Annapolis, MD (September 8-11, 2002) [PDF]

10. “Chemical Sensors using Quantum Cascade Lasers,” F.K. Tittel, A.A. Kosterev, Y. Bakhirkin, R.F. Curl, 3rd QCL Workshop, Freiburg, Germany (September 19, 2002) [PDF]

11. “Trace Gas Sensing Applications of Quantum Cascade Lasers,” A.A. Kosterev, F.K. Tittel, OSA Annual Meeting, Laser Science XVIII, Orlando, FL (September 29-October 3, 2002)

12. “Photoacoustic Spectroscopy in Gases with High-finesse Solid State Resonators,” A.A. Kosterev,Y.A. Bakhirkin, F.K. Tittel, R.F. Curl, Jr., OSA Annual Meeting, Laser Science XVIII, Orlando, FL (September 29-October 3, 2002)

13. “Development of a Real-Time Optical Sensor for Atmospheric Formaldehyde Monitoring,” F.K. Tittel, J. Chen, S. So, L. Hoasan, R.F. Curl, M.P. Fraser, Gulf Coast Hazardous Substance Research Center (GCHSRC) Site Visit, Rice University, Houston, TX (November 18, 2002) [PDF]

2001 Presentations:

1.”Volcanic Gas Emission Measurements Using Tunable Mid-Infrared Diode Laser Based Spectrometers”, F. K. Tittel, D. Richter, M. Erdelyi, C. Oppenheimer, H. J. Duffell, R. L. Jones, M. Burton, Intl. Workshop on Optical Methods in Earth Sciences, Bacoli, Napoli, Italy (March 21-24, 2001) [PDF]

2. “Tunable Infrared Laser Sources: From Laboratory into Space,” F.K. Tittel, R.F. Curl, Humboldt Foundation Meeting, Berlin, Germany (March 29, 2001)

3. “High resolution ambient formaldehyde detection,” M. Erdelyi, D. Rehle, D. Leleux, F.K. Tittel, CLEO 2001, Baltimore, MD (May 6-11, 2001)

4. “Diode and Quantum Cascade Lasers for Chemical and Environmental Analysis,” F.K. Tittel, A.A. Kosterev, M. Erdelyi, R.F. Curl, Dirk Richter, A. Fried, W. Chen, Laser Spectrometry Workshop: A Vision of the Future for Process Analytical, Dow Chemical, La Porte, Texas (May 21-22, 2001) [PDF]

5 . “Diode and Quantum Cascade Lasers for Mid-infrared Gas Sensing Applications”, F. K. Tittel, A. A. Kosterev, M. Erelyi, R. Claps, R. F. Curl, MICS’ 2001, St. Petersburg, Russia, (June 25-29 2001) [PDF]

6. “Trace Gas Detection with Distributed Feedback Quantum Cascade Lasers”, A. A. Kosterv, A. L. Malinovsky, F. K. Tittel, R. F. Curl, Zermatt, Switzerland, TDLS – 2001, (July 8-12 2001) [Paper: PDF, Slides: PDF]

7. “Infrared Overtone Spectroscopy Measurements of Ammonia and Carbon Dioxide in the Effluent of a Biological Water Processor”, R. Claps, D. Leleux, F. V. Englich, F. K. Tittel, M. E. Webber, J. B. Jeffries, R. K. Hanson, J. C. Graf, L. M. Vega, 31st Intl. Conf. on Environmental Systems, Orlando, FL, (July 9-12 2001) [PDF]

8. “Spectroscopic Applications of QPM Devices” , D. G. Lancaster, D. Richter, F. K. Tittel, CLEO/Pacific Rim 2001, Chiba, Japan, (July 15 – 19, 2001) [PDF]

9. “Applications of Kalman filtering to real-time trace gas concentration measurements”, D. P. Leleux, R. Claps, W. Chen, F. K. Tittel, T. L. Harman, ILS-XVII: 17th Interdisciplinary Laser Science Conference, Long Beach, CA, (October 14 – 18 2001)

10. “Compact automated gas sensors based on pulsed QC-DFB lasers”, A. A. Kosterev, F. K. Tittel, R. F. Curl, R. Koehler, C. Ghmacl, F. Capasso, D. L. Sivco, A. Y. Cho,  Harman, ILS-XVII: 17th Interdisciplinary Laser Science Conference, Long Beach, CA, (October 14 – 18 2001)

11. “Portable Diode Laser-Based Sensor for 13CO2/12CO2 Isotopic Ratio Measurement,” M. Erdelyi, R.F. Curl, F.K. Tittel, OSA Meeting 2001 Long Beach, CA (October 14-18, 2001)

12. “Quantum Cascade Lasers for Chemical, Environmental, and Biomedical Analysis,” F.K. TIttel, A. Kosterev, R.F. Curl, 2001 Seminar WOVC, Wuhan, PR China [PDF]

2000 Presentations:

1. “Spectroscopic Application so Quantum Cascade Lasers,” F.K. Tittel, 30th Winter Colloquium on the Physics of Quantum Electronics, Snowbird, UT (Jan 9-12, 2000). [PDF]

2. “Trace Gas Detection in Ambient Air Using a 7.9 Micron QC-DFB Laser,” A. A. Kosterev, R. F. Curl, F. K. Tittel, C. Gmachl, F. Capasso, D. L. Sivco, J. H. Baillargeon, A. L. Hutchinson, and A. Y. Cho, Laser Applications to Chemical and Environmental Analysis, Santa Fe, NM (Feb. 11-13, 2000). [PDF]

3. “Single Frequency Quantum Cascade DFB Laser Based Spectrometer for Trace Gas Detection,” F. K. Tittel, A. A. Kosterev, R. F. Curl, C. Gmachl, F. Capasso, D. L. Sivco, J. H. Baillargeon, A. L. Hutchinson, A. Y. Cho, 15th Topical Meeting on Advanced Solid-State Lasers, Davos, Switzerland (Feb. 13-16, 2000); in “OSA Trends in Optics and Photonics,” Vol. 34, Advanced Solid State Lasers, U. Keller, ed. (Optical Society of America, Washington DC, 9, 271-274 (2000).

4. “Compact High Power Mid-IR Spectroscopic Source Based on Difference Frequency Genera­tion in PPLN,” F. K. Tittel, D. G. Lancaster, D. Richter, 15th Topical Meeting on Advanced Solid-State Lasers, Davos, Switzerland (Feb. 13-16, 2000) [PDF]

5. “Laser Based Absorption Sensors for Trace Gas Monitoring in a Spacecraft Environment,” F.K. Tittel, R.F. Curl, NASA Advanced Environmental Monitoring and Control Meeting, Arcadia, CA (April 24-26, 2000) [PDF]

6. “Development of an Automated Multi-Species Gas Sensor Using Diode Laser Pumped Difference Frequency Generation,” D. Richter, D. G. Lancaster,  F. K. Tittel, CLEO, San Francisco, CA (May 7-12, 2000), OSA Technical Digest (Optical Society of America, Washington DC, 2000), p. 495. [PDF]

7. “Trace Gas Detection in Ambient Air with CW and Pulsed QC Lasers,” A. A. Kosterev, R. F. Curl, F. K. Tittel, C. Gmachl, F. Capasso, D. L. Sivco, J. N. Baillargeon, A. L. Hutchinson, A. Y. Cho, CLEO, San Francisco, CA (May 7-12, 2000), OSA Technical Digest (Opti­cal Society of America, Washington DC, 2000), p. 513. [PDF]

8. “Sub-ppb Detection of Trace Gas Species with a High-Power Diode-Pumped CW Difference Frequency Sensor,” D. G. Lancaster, D. Rehle, D. Leleux, F. K. Tittel, CLEO, San Fran­cisco, CA , OSA Technical Digest (Optical Society of America, Wash­ington DC, 2000), 514 (May 7-12, 2000) [PDF]

9. “Diode Laser Based Formaldehyde Measurements in a Catalytic Trace Control Contaminant System for ISS,” F. K. Tittel, D. Richter, D. G. Lancaster, J. Bahr, D. Wickham, J. C. Graf, 30th International Conference on Environmental Systems (ICES), Toulouse, France (July 10-13, 2000) [PDF]

10. “Absorption Spectroscopy with Quantum Cascade Lasers,” A. A. Kosterev, R. F. Curl, F. K. Tittel, C. Gmachl, F. Capasso, D. L. Sivco, J. N. Baillargeon, A. L. Hutchinson, A. Y. Cho, Int’l Laser Physics Workshop, Bordeaux, France (July 17-21, 2000).

11. “High-Resolution Difference Frequency Laser Spectroscopy for Environmental Applica­tion,” W. Chen, D. Boucher, F. K. Tittel, P. B. Davies, Int’l Laser Physics Workshop, Bordeaux, France (July 17-21, 2000). [PDF]

12. “Laser Spectroscopy of Volcanic Gases,” D. Richter, D. Rehle, F. K. Tittel, C. Oppenheimer, H. J. Duffell, IAVCEI General Assembly, Bali (July 18, 2000).

13. “Diode lasers, DFG and Molecules: Development and applications of trace gas sensors,” D. Richter, F.K. Tittel, RQI-REU Seminar, Rice University, Houston, TX (August 4, 2000) [PDF]

14. “Trace Gas Detection with Quantum Cascade Lasers”, A. A. Kosterev, F. K. Tittel, 14th Annual Summer Research Colloquium, Rice Quantum Inst., Rice University, Houston, TX (August 11, 2000) [PDF]

15. “Laser Spectroscopy at Masaya Volcano, Nicaragua”, D. Richter, F. K. Tittel, 14th Annual Summer Research Colloquium, Rice Quantum Inst., Rice University, Houston, TX (August 11, 2000)

16. “Laser Absorption Spectroscopy of Atmospheric Formaldehyde,” F. K. Tittel, D. Richter, D. Rehle, D. Leleux, D. G. Lancaster, M. P. Fraser, A. Fried, CLEO/Europe-IQEC, Nice, France (Sept. 10-15, 2000). [PDF]

17 . “Benzene Monitoring Using Laser Difference Frequency Spectroscopy”, W. Chen, F. Cazier, D. Boucher, F. K. Tittel, CLEO/Europe-IQEC, Nice, France (Sept. 10-15, 2000) [PDF]

18. “Benzene Monitoring Using Laser Difference Frequency Spectroscopy,” W. Chen, F. Cazier, D. Boucher, F. K. Tittel, CLEO/Europe-IQEC, Nice, France (Sept. 10-15, 2000).

19. “Diode Laser Based Trace Gas Sensors for Semiconductor Process Monitoring,” F. K. Tittel, D. Leleux, T. Harman, 13th Int’l Symp. on Gas Flow and High Power Lasers, Flor­ence, Italy (Sept. 18-22, 2000).

20. “Ammonia Detection in a Bio-Reactor System Using Diode Laser Spectroscopy at 1.53 Microns,” R. Claps, F. V. Englich, D. Richter, J. C. Graf, F. K. Tittel, R. F. Curl, OSA Annual Meeting, Providence, RI (Oct. 22-26, 2000).

21. “Monitoring Methane and Nitrous Oxide in Air with a Pulsed QC-DFB Laser Based Gas Sen­sor,” A. A. Kosterev, R. F. Curl, F. K. Tittel, OSA Annual Meeting, Providence, RI (Oct. 22-26, 2000).

22. “Spectroscopic Detection of Biological NO with a Quantum Cascade Laser at 5.2 Microns,” L. Menzel, A. A. Kosterev, R. F. Curl, F. K. Tittel, W. Urban, C. Gmachl, F. Capasso, D. L. Sivco, J. N. Baillargeon, A. L. Hutchinson, A. Y. Cho, OSA Annual Meeting, Provi­dence, RI (Oct. 22-26, 2000).

23. “Digital Signal Processing Applications to Laser Spectroscopy,” D. P. Leleux, T. L. Harman, F. K. Tittel, OSA Annual Meeting, Providence, RI (Oct. 22-26, 2000).

22. “Adaptive Filtering Applications to Real-Time Laser Spectroscopy,” D. P. Leleux, T. L. Harman, F. K. Tittel, OSA Annual Meeting, Providence, RI (Oct. 22-26, 2000). [PDF]

24. “Portable Trace Gas Sensor Based on Difference Frequency Generation in PPLN at 3.3 Micron,” D. Rehle, R. F. Curl, F. Tittel, OSA Annual Meeting, Providence, RI (Oct. 22-26, 2000). [PDF]

25. “Fiber Laser Pumped Difference Frequency Based Mid-IR Source for Ammonia Detection,” D. Richter, F. V. Englich, F. K. Tittel, N. Matsuoka, S. Yamaguchi, T. Fujioka, OSA Annual Meeting, Providence, RI (Oct. 22-26, 2000) [PDF]

26. “Volcanic Gas Emission Measurements Using Tunable Mid-IR Diode Laser Based Sensors,” F. K. Tittel, D. Richter, M. Erdelyi, C. Oppenheimer, H. J. Duffell, R. L. Jones, M. R. Burton, OSA Annual Meeting, Providence, RI (Oct. 22-26, 2000) [PDF]

27. “Advanced Mid-IR Laser Sources for Trace Gas Detection and Chemical Analysis,” F. K. Tittel, Second International Photonics Conf. (IPC 2000), Hsinchu, Taiwan (Dec. 12-15, 2000) [PDF]

28. “Diode lasers, DFG and Molecules,” D.G. Lancaster, D. Richter, R.F. Curl, F.K. Tittel, OSA TOPS 31 Advanced Semiconductor Lasers and Their Applications, eds. L. Hollberg and R.J. Lang, (2000) [PDF]

1999 Presentations:

1. “Detection of Carbon Monoxide from Biological Tissue Using Difference Frequency Generation in Periodically-Poled Lithium Niobate near 4.6 µm,” Y. Morimoto, D. Li, R. F. Curl, and F. K. Tittel, BIOS ’99, San Jose, CA (Jan. 22-29, 1999). [PDF]

2. “Emerging trace gas detection techniques: concepts and environmental applications,” F. K. Tittel, Physical Sciences, Inc., Andover, MA (February 1, 1999)

3. “Tunable, fiber coupled spectrometer based on difference-frequency generation in periodically poled lithium niobate,” D. Richter, D.G. Lancaster, R.F. Curl, F.K. Tittel, ASSL ’99, Boston, MA (February 1-3, 1999) [PDF]

4. “Coherent Multiple Imaging by means of Pupil Plane Filtering,” M. Erdelyi, A. Kroyan, K. Osvay, Z. Bor, W.L. Wilson, M.C. Smayling, F.K. Tittel, Optical Microlithography XII, Santa Clara, CA (March 14-19, 1999) [PDF]

5. “Enhanced Microlithography using Coherent Multiple Imaging,” M. Erdelyi, K. Osvay, Z. Bor, W. L. Wilson, M. C. Smayling, F. K. Tittel, The Int’l Symp. on Microelectronics Manufacturing Technologies, Edinburgh, UK (May 19-21, 1999) [PDF]

6. “CO-detection from biological tissues using a mid-infrared laser based gas sensor,” J. Klattenhoff, Y. Morimoto, D.G. Lancaster, R.F. Curl, F.K. Tittel, W. Durante, W. Neu, OSA Biomedical Topical Meeting, Munich, Germany (June 14, 1999) [PDF]

7.  “Laser based absorption sensors for trace gas monitoring in a spacecraft habitat,” F. K. Tittel, D. G. Lancaster, D. Richter, R. F. Curl, 29th Int’l Congress on Environmental Systems, Denver, CO (July 12-15, 1999) [pdf]

8.  “Compact Mid-Infrared Trace Gas Sensor Based on Difference Frequency Mixing” F. K. Tittel, D. G. Lancaster, D. Richer, L. Goldberg, J. Koplow, Application Tunable Diode and Other infrared Sources for Atmospheric Studies and Industrial Processing Monitoring II, Denver, CO, (July 19-20 1999) [PDF]

9. “Diode lasers, DFG and Molecules”, D. G. Lancaster, D. Richter, R. F. Curl, F. K. Tittel, Advanced Semiconductor Lasers and Their Applications, Santa Barbara, CA, (July 21-23 1999)

10. “Application of Non-Diffracting Beams,” Z. Bor, M. Erdelyi, Z.L. Horvath, G. Szabo, K. Osvay, W.L. Wilson, F.K. Tittel, 18th Congress of the Int’l Commission for Optics, San Francisco, CA (August 2-6, 1999)

11. “Robust Mid-Infrared Spectrometer Based on Difference Frequency Generation for Trace Gas Sensing Applications”, K. Papanyan, D. Richter, D. G. Lancaster, R. F. Curl, F. K. Tittel, 13th Annual Summer Research Colloquium, Rice Quantum Inst., Rice University, Houston, TX (August 20, 1999)

12.  “Detection of Trace Gas Contaminants using Diode Laser Based Methods”, F.K. Tittel, Plenary Talk CLEO/Pacific ’99, Seoul, South Korea (Aug 1- Sept 3, 1999) [PDF]

13. “Mid-infrared difference frequency trace gas sensors from the laboratory to the real world”, D. Richter, D. G. Lancaster, R. F. Curl, F. K. Tittel, ILS-XV 15th Interdisciplinary Laser Science Conference, Santa Clara, CA (September 26-30, 1999)

14. “Computer simulations of coherent multiple imaging technique”,  A. Kroyan, M. Erdeli, W. L. Wilson, M. C. Smayling, F. K. Tittel,  ILS-XV 15th Interdisciplinary Laser Science Conference, Santa Clara, CA (September 26-30, 1999)

15. “Compact CH4 trace gas sensor using fiber-coupled difference-frequency generation at 3.3 microns”, R. Weidner, D. G. Lancaster, D. Richter, F. K. Tittel, J. Limpert, H. Zellmer, A. Tuennermann,  ILS-XV 15th Interdisciplinary Laser Science Conference, Santa Clara, CA (September 26-30, 1999)

16. “Application of mid-infrared distributed-feedback quantum-cascade lasers to trace gas detection in the 8aem spectral region”, A. A. Kosterev, R. F. Curl, F. K. Tittel, C. Gmachl, F. Capasso, D. L. Sivco, J. N. Baillargeon, A. L. Huchinson,   ILS-XV 15th Interdisciplinary Laser Science Conference, Santa Clara, CA (September 26-30, 1999)

17. “Emerging trace gas detection techniques: concepts and real world applications,” F.K. Tittel, Industrial Lasers (IL) ’99, Wuhan, PR China (October 25-27, 1999) [pdf]

 

1998 Presentations:

1. “Enhanced microlithography using coated objectives and image duplication,” M. Erdelyi, Z. Bor,G. Szabo, F.K. Tittel, Optical Microlithography XI, Santa Clara, CA (February 25-27, 1998) [PDF]

2. “Coping with the Impact of Lens Aberrations in the Context of Wavefront Engineering,” A. Kroyan, M.D. Levenson, F.K. Tittel, Optical Microlithography XI, Santa Clara, CA (February 25-27, 1998) [PDF]

3. “Laser Based Absorption Sensor for Trace Gas Monitoring in a Spacecraft Environment,” D.G. Lancaster, D. Richter, J.C. Graf, R.F. Curl, F.K. Tittel, Laser Applications to Chemical and Environmental Analysis 1998, Florida (March 9-11) [PDF]

4. “Detection of trace gas contaminants using infrared diode laser based methods: from the laboratory to space,” F.K. Tittel, Pennsylvania State University, State College, PA (April 24, 1998) [PDF]

5. “All diode pumped difference frequency spectrometer employing bulk periodically poled lithium niobate,” D. Richter, D.G. Lancaster, R.F. Curl, F.K. Tittel, 1998 OSA Annual Meeting, Baltimore, MD (April 24-28, 1998) [PDF]

6. “Tunable mid-infrared laser based gas sensors: new technologies and applications,” D.G. Lancaster, F.K. Tittel, D. Richter, K.P. Petrov, R.F. Curl, CLEO ’98, San Francisco, CA (May 4-6, 1998) [PDF]

7. “Detection of Trace Gas Contaminants Using Infrared Diode Laser-Based Methods: From the Laboratory towards Space,” F. K. Tittel, Int’l Symposium on Modern Topics in Applied Physics, Heidelberg, Germany (May 16, 1998).

8. “Environmental monitoring of chemical species,” F.K. Tittel, K.P. Petrov, International Conference on Atomic and Molecular Pulsed Lasers II, (29 June 1998) [PDF]

9. “Present and future trends in excimer-laser-based microlithography,” F.K. Tittel, M. Erdelyi, Z.L. Horvath, A. Kroyan, W. Williams, M. Smayling, Z. Bor, G. Szabo, International Conference on Atomic and Molecular Pulsed Lasers II, (29 June 1998) [PDF]

10  “Enhanced Microlithography Using Coherent Multiple Imaging”, M. Erdelyi, W. L. Wilson, M. Smayling, F. K. Tittel, 12th Annual Summer Research Colloquium, Rice Quantum Inst., Rice University, Houston, TX (August 21, 1998)

11. “Sub-Resolution Assist Feature Tolerances For Contact Windows Using 193nm Lithography”, A. Kroyan, G. P. Watson, F. K. Tittel, 12th Annual Summer Research Colloquium, Rice Quantum Inst., Rice University, Houston, TX (August 21, 1998)

12 . “Mid infrared sensors using periodically poled LiNbO3 for Trace Gas detection”, F. K. Tittel, D. G. Lancaster, D. Richter, R. F. Curl, CLEO Europe ’98, Glasgow, United Kingdom (September 14-18, 1998) [PDF]

13.  “Novel Gas Sensor Based On Difference Frequency Mixing Using All Fiber Beam Delivery”, D. G. Lancaster, F. K. Tittel, R. F. Curl, L. Goldberg, J. Koplow, CLEO Europe ’98, Glasgow, United Kingdom (September 14-18, 1998) [PDF]

14 . “Comparison of FT-IR and Diode Laser Based Absorption Spectroscopy for Trace Gas Monitoring”, W. Chen, D. Moinet, F. K. Tittel, CLEO Europe ’98, Glasgow, United FKingdom (September 14-18, 1998) [PDF]

15. “Sub-Resolution Assist Feature Tolerances for Contact Windows Using 193 nm Lithography,” A. Kroyan, G.P. Watson, R.A. Cirelli, O. Nalamasu, A.E. Novembre, F.K. Tittel, 18th Bacus Symposium, Redwood City, CA (September 16-18, 1998) [PDF]

16. “Detection of trace gas contaminants using infrared diode laser based methods: from the laboratory to space,” F.K. Tittel, Bell Laboratories, Lucent Technologies (October 23, 1998) [PDF]

1997 Presentations:

1. “Enhancement of Depth of Focus Using Nearly Nondiffracting Bessel Beams in Optical Microlithography,” Z. Bor, M. Erdélyi, Z.L. Horvath, G. Szabo, F.K. Tittel, J.R. Cavallaro, New Nanostructures below 100 nm: Perspectives and Applications, Bad Honnef, Germany (January 27-30, 1997)

2.“IR laser sensor for trace gas detection,” T. Töpfer, K.P. Petrov, Y. Mine, R.F. Curl, and F.K. Tittel, German Physical Society Spring Meeting, Mainz, Germany (March 3-7, 1997).

3. “Optical micro lithography with nearly non diffracting beams,” M. Erdelyi, Z.L. Horvath, Zs. Bor, G. Szabo, J.R. Cavallaro, M.C. Smayling, and F.K. Tittel, Optical Microlithography XI, Santa Clara, CA (March 9-14, 1997). [pdf]

4. “Wavefront engineering issues related to Deep-UV lithography,” A. Kroyan, M. Erdelyi, W.L. Wilson, M.C. Smayling, F.K. Tittel, Rice University Corporate Affiliates Day ’97, Houston, TX (March 1997)

5. “Tunable mid-infrared source pumped by fiber-coupled communications lasers,” K.P. Petrov, R.F. Curl, F.K. Tittel, and L. Goldberg, CLEO, Baltimore, MD (May 18-23, 1997). [pdf]

6. “High-precision mid-infrared spectrometer using diode-pumped difference-frequency generation in PPLN,” K.P. Petrov, F.K. Tittel, S. Walkman, L.W. Hollberg, E.J. Dlugokencky, M.A. Arbore, and M.M. Fejer, CLEO, Baltimore, MD (May 18-23, 1997). [PDF]

7. “Mid-infrared laser-based sensors for trace gas detection,” Y. Mine, K.P. Petrov, R.F. Curl, F.K. Tittel, and T. Topfer, CLEO, Baltimore, MD (May 18-23, 1997). [pdf]

8. “Mid-Infrared Laser Sensor for Multicomponent Trace Gas Detection,” F.K. Tittel, K.P. Petrov, R.F. Curl, CLEO, Baltimore, MD (May 18-23, 1997) [PDF]

8. “Generation of zero order Bessel beams with Fabry-Perot interferometer,” Z. L. Horváth, M. Erdélyi, G. Szabó, Zs. Bor, F. K. Tittel, J. R. Cavallaro, SPIE Int’l Conf. on New Laser Technologies and Applications, Olympia, Greece (June 1, 1997) [PDF]

9. “Depth of Focus Enhancement with Nearly Nondiffracting Beams,” Z. Bor, M. Erdelyi, Z.L. Horvath, G. Szabo, F.K. Tittel, 1997 Korean-Hungarian Seminar on Integrated Circuits and Devices, Budapest, Hungary (June 24-26, 1997)

10. “Development and chamber testing of laser-based gas sensors,” K.P. Petrov, T. Topfer, Y. Mine, R.F. Curl, F.K. Tittel, and J. Graf, 27th International Conference on Environmental Systems, Lake Tahoe, NV (July 14-17, 1997), SAE Technical Paper Series 972434 [PDF]

11. “Trace gas detection using mid-infrared laser difference-frequency generation,” Y. Mine, K.P. Petrov, T. Topfer, R.F. Curl, F.K. Tittel, and N. Melander, CLEO Pacific Rim, Tokyo, Japan (July 14-18, 1997). [pdf]

12. “Measurement of 13CH4/12CH4 ratios in air using diode-pumped 3.3mm differences-frequency generation in PPLN,” S. Waltman, K.P. Petrov, E.J. Dlugokencky, M. Arbore, M.M. Fejer, F.K. Tittel, and L.W. Hollberg, IEEE/LEOS Summer Topical Meeting, Montreal, Canada (August 11-15, 1997). [pdf]

13. “Detection of Nitric Oxide (NO) at 5.3 Micron Using Difference-Frequency Laser Spectroscopy,” D. Li, A. A. Kosterev, R. F. Curl, F. K. Tittel, 11th Annual Summer Research Colloquium, Rice Quantum Inst., Rice University, Houston, TX (August 22, 1997) [PDF]

14. “Development of a Gas Sensor for Monitoring of Methane and Nitrous Oxide from Rice-based Agroecosystem,” H. Zhao, R. L. Sass, L. K. Sigren, R. F. Curl, F. K. Tittel, 11th Annual Summer Research Colloquium, Rice Quantum Inst., Rice University, Houston, TX (August 22, 1997) [PDF]

15. “Development of a New Diode Laser Based Trace Gas Sensor”, D. Richter, K. P. Petrov, Y. Mine, D. G. Lancaster, R. F. Curl, F. K. Tittel, 11th Annual Summer Research Colloquium, Rice Quantum Inst., Rice University, Houston, TX (August 22, 1997)

16. “Development of an Embedded Control System for Compact Diode Laser Gas Sensors”, G. Smayling, K. Petrov, D. Richter, F. K. Tittel, T. Harman, M. Smayling, 11th Annual Summer Research Colloquium, Rice Quantum Inst., Rice University, Houston, TX (August 22, 1997) [PDF]

17. “Trace gas detection molecules near 3.5mm using laser difference generation,” N. Melander, Y. Mine, K.P. Petrov, R.F. Curl, and F.K. Tittel, 15thColloq. On High Resolution Molecular Spectroscopy, Glasgow, UK (September 7-11, 1997).

18. “Environmental monitoring of chemical species,” F.K. Tittel, AMPL, Tomsk, Russia (September 22-26, 1997) [PDF]

19. “Present and future trends in excimer laser based microlithography,” F.K. Tittel, A. Kroyan, M. Erdélyi, W. Wilson, Zs. Bor, G. Szaboó, and M.D. Levenson, Atomic and Molecular Pulsed Lasers (AMPL), Tomsk, Russia (September 22-26, 1997). [pdf]

20. “Measurements of atmospheric greenhouse gases,” E.J. Dlugokencky, J.E. Elkins, F.K. Tittel, and K.P Petrov, OSA Annual Meeting, Long Beach, CA (October 12-17, 1997).

21. “Mid-infrared laser sensor for multi-component trace gas detection,” F.K. Tittel, K.P. Petrov, Y. Mine, and R.F. Curl, OSA Annual Meeting, Long Beach, CA (October 12-17, 1997) [PDF]

22. “Depth of focus enhancement with annular aperture and coated objective,” M. Erdélyi, Zs. Bor, G. Szabó, and F.K. Tittel, Quantum Electronics, Budapest, Hungary (October 30, 1997).

23. “Application of nondiffracting Bessel beams in microlithography,” Zs. Bor, M. Erdélyi, H.L. Zoltan, G. Szabó, and F.K. Tittel, Quantum Electronics, Budapest, Hungary (October 30, 1997).

24. “Fast, sensitive, trace gas detection with a portable solid-state mid-infrared laser sensor,” K.P. Petrov, Y. Mine, R.F. Curl, and F.K. Tittel, LEOS, San Francisco, CA (November 10-13, 1997). [pdf]

1996 Presentations:

1. “Recent Advances in Tunable Mid-Infrared Laser Sources for Environmental Gas Monitoring,” F. K. Tittel, K. P. Petrov, R. F. Curl, L. Goldberg, W. K. Burns, S. Waltman, E. J. Dlugokencky, L. W. Hollberg, 16th Annual Meeting of the Laser Society of Japan, Yokohama, Japan (January 24-25, 1996) [pdf]

2. “Automated Evaluation of Critical Features in VLSI Layouts Based on Photolithographic Simulations,” J. R. Cavallaro, C. Sengupta, F. K. Tittel, W. L. Wilson, Proc. of the NSF Design and Manufacturing Grantees Conference, Albuquerque, NM (January 1996).

3. “An Integrated CAD Framework Linking VLSI Layout Editors and Process Simulators,” C. Sengupta, M. Erdelyi, J. R. Cavallaro, M. C. Smayling, F. K. Tittel, W. L. Wilson, Proc. SPIE Conference on Optical Microlithography IX, Santa Clara, CA (Mar 10-15, 1996).

4. “Sub-quarter Micron Contact Hole Fabrication Using Annular Illumination,” M. Erdelyi, Zs. Bor, G. Szabo, J. R. Cavallaro, M. C. Smayling, F. K. Tittel, W. L. Wilson, Proc. SPIE Conference on Optical Microlithography IX, Santa Clara, CA (March 10-15,1996). [PDF]

5. “Generation of Diffraction-Free Beams for Application in Optical Microlithography,” Z. Bor, M. Erdelyi, Z.L. Horvath, G. Szabo, F.K. Tittel, J.R. Cavallaro, M.C. Smayling, Workshop “Holography as Realized,” Kecskemet, Hungary (June 3-4, 1996)

6. “Application of Nondiffracting Bessel Beams to Optical Lithography,” M. Erdelyi, Z.L. Horvath, G. Szabo, Z. Bor, F.K. Tittel, J.R. Cavallaro, M.C. Smayling, 2nd Int’l Symp. on 193 nm Lithography, Colorado Springs, CO (July 30 – August 2, 1996) [PDF]

7. “High Resolution Microlithography Applications of Deep-UV Excimer Lasers,” F.K. Tittel, M. Erdelyi, G. Szabo, Zs. Bor, J. Cavallaro, M.C. Smayling, GCL/HPL ’96, Edinburgh, U.K. (Aug. 26-30, 1996) [PDF]

1995 Presentations

1. “Submicron Optical Microlithography Based on Interferometric Phase Shifting,” J. R. Cavallaro, F. K. Tittel, W. L. Wilson, NSF Design, Manufacturing and Industrial Innovation Grantees Conference, San Diego, CA (Jan 1995) [PDF]

2. “A New Phase Shifting Technique for Deep UV Excimer Laser Based Lithography,” Zs. Bor, J. R. Cavallaro, M. Erdelyi, M. Kido, C. Sengupta, M. C. Smayling, G. Szabo, F. K. Tittel, W. L. Wilson, SPIE Photonics West, San Jose, CA (Feb. 4-10, 1995) [PDF]

3. “A New Interferometric Phase-Shifting Technique for Sub-halfmicron Laser Microlithography,” M. Erdelyi, C. Sengupta, Zs. Bor, J. R. Cavallaro, M. Kido, M. C. Smayling, F. K. Tittel, W. L. Wilson, G. Szabo, Proc. SPIE Conference on Optical/Laser Microlithography VIII, Santa Clara, CA (Feb 19-24, 1995) [PDF]

4. “Ultrahigh Resolution Lithography with Excimer Lasers,” F. K. Tittel, M. Erdelyi, C. Sengupta, Z. Bor, G. Szabo, J. R. Cavallaro, M. C. Smayling, W. L. Wilson,  NATO Workshop on Gas Lasers – Recent Developments and Future Prospects, Moscow, Russia (July 2-5, 1995). [PDF]

5. “A Phase Shifting Technique for Ultrahigh Resolution Deep-UV Lithography,” M. Erdelyi, Z. Bor, F. Tittel, J. Cavallaro, G. Szabo, W. Wilson, M. Smayling, C. Sengupta,  First International Symposium on 193nm Lithography, Colorado Springs, CO (August 15-18, 1995) [PDF]

6. “Compact tunable mid-infrared laser sources: technology and applications,” F.K. Tittel, K.P. Petrov, U. Simon, R.F. Curl, SPIE Laser Optics ’95, St. Petersburg, Russia (June 27 – July 1, 1995) [PDF]

7. “Tunable infrared source by difference frequency mixing diode lasers and diode-pumped YAG, and application to methane detection,” S. Waltman, L. Hollberg, K. Petrov, U. Simon, F.K. Tittel, R.F. Curl, Semiconductor Lasers: Advanced Devices and Applications, Keystone, CO (August 21-23, 1995) [PDF]

8. “Tunable infrared laser sources for spectroscopy and atmospheric trace gas detection,” F.K. Tittel, K.P. Petrov, , R.F. Curl, S. Waltman, L. Hollberg, 12th Int’l Conf. on Laser Spectroscopy, Capri, Italy (June 11-16, 1995) [PDF]

9. “Detection of spacecraft cabin air contaminants using infrared laser-based methods,” K.P. Petrov, L. Goldberg, S. Waltman, W.K. Burns, L.W. Hollberg, E.J. Dlugokencky, R.F. Curl, F.K. Tittel, NASA/AIAA Life Sciences and Space Medicine Conference, JSC (March 5-7, 1995) [PDF]

1994 Presentations

1. “Enhanced VLSI Manufacturability Using an Integrated CAD Framework,” H. M. Fossati, F. K. Tittel, W. L. Wilson, J. R. Cavallaro, NSF Design and Manufacturing Grantees Conference, Cambridge, MA (Jan 1994)

2. “A New Phase Shifting Method for High Resolution Microlithography,” M. Kido, J. R. Cavallaro, G. Szabo, W. L. Wilson, F. K. Tittel, NSF Design and Manufacturing Grantees Conference, Cambridge, MA (Jan 1994) [PDF]

3. “CW difference frequency generation using AgGaS2: problems encountered in power scaling,” C.E. Miller, W.C. Eckhoff, U. Simon, F.K. Tittel, R.F. Curl, SPIE Photonics West 1994, Los Angeles, CA (January 24-26, 1994) [PDF]

4. “A New Phase Shifting Method for High Resolution Microlithography,” M. Kido, J. R. Cavallaro, G. Szabo, W. L. Wilson, F. K. Tittel, SPIE Optical/Laser Microlithography VII, San Jose, CA (Feb 27, 1994)

5. “Advanced high-resolution interferometric phase shift technique far microlithography,” M. Kido, G. Szabo, J. R. Cavallaro, W. L. Wilson, M. C. Smayling, F. K. Tittel, CLEO 1994, Anaheim, CA (May 8-13, 1994) [PDF]

6. “Recent Progress in Tunable Nonlinear Optical Devices for Infrared Spectroscopy,” U. Simon, F.K. Tittel, Topical Meeting on Infrared Lasers, Monte Verita, Ascona, Switzerland (May 29 – June 3, 1994) [see publications]

7. “Diode Laser Based Infrared Source For Application in in Spectroscopy and Remote Sensing”, K. Petrov, U. Simon, F. K. Tittel, 8th Annual Summer Research Colloquium, Rice Quantum Inst., Rice University, Houston, TX (August 19, 1994)

8. “Time- Resolved Reflectance Spectroscopy on Composite Biological Tissues”, A. H. Hielscher, S. L. Jacques, H. Liu, B. Chance, F. K. Tittel, 8th Annual Summer Research Colloquium, Rice Quantum Inst., Rice University, Houston, TX (August 19, 1994)

9. “Interferometric Phase Shift Technique for High Resolution Deep UV Microlithography,” F. K. Tittel, J. R. Cavallaro, M. Kido, M. C. Smayling, G. Szabo, W. L. Wilson, SPIE Tenth International Symposium on Gas Flow and Chemical Lasers, Friedrichshafen, Germany (Sept 5-6, 1994) [PDF]

10. “Cavity-Enhanced difference frequency generation based on ArGaS2 and diode lasers,” U. Simon, S. Waltman, I. Loa, F.K. Tittel, L. Hollberg, OSA Annual Meeting, Dallas, TX (October 2-7, 1994)

11. “Design considerations for diode-laser-based tunable IR source for remote sensing,” K.P. Petrov, U. Simon, C.E. Miller, R.F. Curl, F.K. Tittel, OSA Annual Meeting, Dallas, TX (October 2-7, 1994)

1993 Presentations:

1 . “XeCl laser-induced fluorescence detection of peroxidized lipoproteins in lipid-rich atherosclerotic lesions”, A.A. Oraevsky, P.D. Henry, S.L. Jacques, F.K. Tittel, Diagnostic and Therapeutic Cardiovascular Inventions III, Los Angeles, CA (January 16-17, 1993)

2 . “Non Invasive Monitoring of Blood Oxygenation by Phase Resolved Transmission Spectroscopy”, A. H. Hielscher, F. K. Tittel, S. L. Jacques, Photon Migration and Imaging in Random Media and Tissues, Los Angeles, CA (January 17 – 19 1993)

4.“How source/collector placement and subsurface absorbing layer affect time-resolved and phase/modulation-resolved photon migration”,  S.L. Jacques, A. H. Hielscher, L. Wang, F. Tittel, SPIE 1888, 310-319, OE/LASE, Los Angeles, CA (January 24-29, 1993) [PDF]

5. “New Tunable Infrared Sources for Laser Spectroscopy,” F. K. Tittel, ETH, Zurich (March 12, 1993) [PDF]

6. “Time- and Phase-Resolved Spectroscopy of Multilayered Tissues”, A.H. Hielscher, S.L. Jacques, F.K. Tittel, ASLMS Thirteenth Annual Meeting, New Orleans, Louisiana (April 18-20, 1993)

7.”Pulsed Laser Ablation of Atherosclerotic Aorta. Relative Role of Thermal and Mechanical Effects”, A. Oraevsky, S. Jacques, F. Tittel, P. Henry, ASLMS Thirteenth Annual Meeting, New Orleans, Louisiana (April 18-20, 1993)

8. “Recent Progress of Terawatt Excimer Laser Sources,” F.K. Tittel, K. Mossavi, G. Szabo, Short Wavelength V: Physics with Intense Laser Pulses Second Topical Meeting, San Diego, CA (March 29-31, 1993) [PDF]

9. “Ultrahigh-brightness, Short Pulse Excimer Laser System at 193 nm,” G. Szabo, K. Mossavi, F.K. Tittel, CLEO ’93, Baltimore, MD (May 2-7, 1993) [PDF]

10. “Infrared Kinetic Spectroscopy of Free Radicals Using Difference Frequency Generation,” C.E. Miller, U. Simon, W.C. Eckhoff, R.F. Curl, F.K. Tittel, Laser Spectroscopy: XIth Int’l Conference, Hot Springs, VA (June 1993) [PDF]

11. “A New Phase-Shifting Method for High Resolution Microlithography,” M. Kido, G. Szabo, J. R. Cavallaro, W. L. Wilson, F. K. Tittel, 7th Annual RQI Summer Research Colloquium, Rice University, Houston, TX (August 13, 1993) [PDF]

12. “Recent Advances in Difference- Frequency Generation Using Single-Mode Diode Lasers”, I. Loa, U. Simon, C. E. Miller, R. F. Curl, F. K. Tittel, 7th Annual RQI Summer Research Colloquium, Rice University, Houston, TX (August 13, 1993) [PDF]

13. “Time Resolved Photon Migration in Layered Tissue Structures,” A. H. Hielscher, S. L. Jacques, H. Liu, B. Chance, F. K. Tittel, 7th Annual RQI Summer Research Colloquium, Rice University, Houston, TX (August 13, 1993) [PDF]

14. “Mid-Infrared Difference Frequency Generation Using Optically Amplified Diode Lasers as Pump Sources,” I. Loa, U. Simon, F.K. Tittel, Lasers ’93, Lake Tahoe, NV (December 6-10, 1993) [PDF]

1992 Presentations:

1 . “Generation and Amplification of Subpicosecond ArF Radiation”, T. Hofmann, K. Mossavi, G. Szabo, F. K. Tittel, Ninth International Symposium on Gas Flow and Chemical Lasers, Crete, Greece (September 21 – 25, 1992) [PDF]

2 . “High Power Visible Radiation from a Raman Shifted XeF (C->A) Excimer Laser”, T. Hofmann, F. K. Tittel, Ninth International Symposium on Gas Flow and Chemical Lasers, Crete, Greece, (September 21 – 25, 1992) [PDF]

3. “Computer Controlled High Resolution Color Center Laser Spectrometer”, E.L. Cartwright, R.F. Curl, F.K. Tittel, Intl Conf on Lasers ’92, Houston, Texas (December 7-10, 1992)

4. “Progress in Excimer Laser Technology and Applications,” F.K. Tittel, Opto ’92, Hyogo, Japan (1992) [PDF]

1991 Presentations:

1. “Spectral analysis of Transcutaneous Reflectance Signals in Neonates of Various Gestational Ages”, I.S. Saidi, S.L. Jacques, C.J. Lynn, D.G. Oelberg, F.K. Tittel, Ninth Annual Conference on Biomedical Engineering Research in Houston, Houston, TX (February 7-8, 1991)

1990 Presentations:

1. “Monitoring Neonatal Bilirubinemia using an Optical Patch”, I. S. Saidi, S.L. Jacques, M. Kejzer, F.K. Tittel, Proc. SPIE 2001, Optical Fibers in Medicine V OE/LASE, Los Angeles, CA (January 17-18, 1990) [PDF]

2. “Advanced concepts of electron beam pumped excimer lasers,” F.K. Tittel, P. Canarelli, C.B. Dane, T. Hofmann, R. Sauerbrey, T.E. Sharp, G. Szabo, W.L. Wilson, P.J. Wisoff, S. Yamaguchi, Eighth International Symposium on Gas Flow and Chemical Lasers, Madrid, Spain (September 10-14, 1990) [PDF]

1989 Presentations:

1. “Scaling Demonstration of the XeF (C->A) Laser,” OE/LASE ’89, Los Angeles, CA (January 15-20, 1989)

2. “Excimer Lasers in Medicine”, F.K. Tittel, I. S. Saidi, G. H. Pettit, P.J. Wisoff, R. Sauerbrey, SPIE 1041, 219-221 OE/LASE, Los Angeles, CA (January 16-18, 1989) [PDF]

3. “Recent Progress in XeF (C->A) Excimer Laser Technology,” F.K. Tittel, C.B. Dane, T. Hofmann, S. Yamaguchi, C.J. Hirst, R. Sauerbrey, W.L. Wilson, Laser 89, Ninth International Congress of Optoelectronics in Engineering, Munich, Germany (January 1989) [PDF]

4. “Thrombolysis by Excimer Laser Photoablation”, G.H Pettit, R. Sauerbrey, I.S. Saidi, F.K. Tittel, R.W. Farrell, C.R. Benedict, Biomedical Engineering Research in Houston, Houston, TX (February 17-18, 1989) [PDF]

5. “Excimer Laser Induced Autofluorescence from thersclerotic Human Arteries”, G.H. Pettit, F.K. Tittel, R. Sauerbrey, Biomedical Engineering Research in Houston, Houston, TX (February 17-18, 1989) [PDF]

6. “Investigation of Potential Removal of Cataract Lenses Using Excimer Lasers”, I.S. Saidi, G.H. Pettit, F.K. Tittel, L.J. Girard, Biomedical Engineering Research in Houston, Houston, TX (February 17-18, 1989) [PDF]

7. “Scaling Demonstration of the XeF (C->A) Laser,” OE/LASE ’89, Los Angeles, CA (January 15-20, 1989)

8. “Scaling Studies of the XeF(C->A) Excimer Laser”, Conf. on Lasers and Electro-optics (CLEO 1989), Baltimore, MD, (April 24-28, 1989)

9 . “Wideband Tuning Experiments with an Injection-Controlled XeF (C->A) Laser”, W. L. Wilson, C. B. Dane, S. Yamaguchi, T. Hofmann, R. Sauerbrey, F. K. Tittel, International Confrence on Lasers 89′, New Orleans, LA, (December 3 -8 1989) [PDF]

1988 Presentations:

1. “Fluorescence analysis of laser ablated-arteriosclerotic human aortas,” G.H. Pettit, S. Kubodera, F.K. Tittel, R.A. Sauerbrey, CLEO 1988, Anaheim, CA (April 25-29, 1988)

2. “Efficient broadband tuning turning of a blue-green XeF(C->A) Excimer Laser”, R. A. Cheville, C. B. Dane, F. K. Tittel, W. Wilson, XVI International Conference on Quantum Electronics (IQEC), Tokyo, Japan, (July 18-21, 1988)

3. “Laser induced autofluorescence analysis of arteriosclerotic arteries,” G. Pettit, S. Kubodera, F.K. Tittel, M. Sartori, P. Henry, R. Sauerbrey, World Congress on Medical Physics and Biomedical Engineering, San Antonio, TX (August 6-12, 1988)

4. “Rare-gas excimer lasers”, Proc. of European Conf. on Quan. Electron. (EQEC-88) (September 1988)

5. “New Frontiers in Exicimer Laser Technology”, Avco Research Laboratory, Everett, MA, F. K. Tittel (September 9, 1988)

6 . “XeF (C->A) Laser Research: Tunable Blue-Green LIDAR Transmitter Demonstration”, F. K. Tittel, W. L. Wilson, R. Sauerbrey, G. Hirst, B. Dane, Boston, MA (November 14, 1988)

1987 Presentations:

1. “Realtime collection of autofluorescence of coronary arteries,” M.P. Sartori, P.D. Henry, R. Roberts, S. Kubadero, R. Sauerbrey, G.L. Valderrama, M.J. Berry, F.K. Tittel, American Society for Laser Medicine and Surgery, Inc., San Francisco, CA (April 11-13, 1987) [PDF]

2. “Laser-induced autofluorescence: a new medical imaging technique for diagnosis of the arterial wall,” R. Sauerbrey, S. Kubodera, F.K. Tittel, M. Sartori, P.D. Henry, SPIE O-E/Fibers, San Diego, CA (August 17-19, 1987)

3. “Photofragmentation of Semiconductor Positive Cluster Ions,” Q. Zhang, Y. Liu, R.F. Curl, F.K. Tittel, R.E. Smalley, Advances in Laser Science-III, Atlantic City, NJ (November 1-4, 1987) [PDF]

4. “Autofluorescence maps of human arteries,” M. Sartori, D. Weilbaecher, P.D. Henry, S. Kubodea, F.K. Tittel, R. Sauerbrey, 60th Scientific Sessions of the American Heart Association, Anaheim, CA (November 16-19, 1987)

1986 Presentations:

1. “UV and Visible Ablation Rates in Canine and Human Arteries”, M. Sartori, P.D. Henry, R. Roberts, R. Sauerbrey, F.K. Tittel, Biomedical Engineering Research in Houston, Houston, TX (February 14-15, 1986) [PDF]

2. “Diode Laser Kinetic Spectroscopy,” D.R. Lander, C.B. Dane, R.F. Curl, G.P. Glass, F.K. Tittel, Advances in Laser Science-II, Seattle, WA (October 20-24, 1986) [PDF]

3. “Kinetic Spectroscopy Using a Color Center Laser,” J.W. Stephens, J.L. Hall, W.B. Yan, H. Solka, M.L. Richnow, R.F. Curl, Jr., G.P. Glass, F.K. Tittel, Advances in Laser Science-II: Proceedings of the 2nd International Laser Science Conference, Seattle, WA (October 20-24, 1986) [PDF]

4. “Computerization of an Infrared Diode Laser Spectrometer,” C.B. Dane, D.R. Lander, R.F. Curl, Jr., J.V.V. Kasper, F.K. Tittel, Advances in Laser Science-II: Proceedings of the 2nd International Laser Science Conference, Seattle, WA (October 20-24, 1986) [PDF]

5. “Photodetachment and Photodissocaition Studies of Semiconductor Cluster Ions,” Y. Liu, Q. Zhang, S.C. O’Brien, J.R. Heath, R.F. Curl, F.K. Tittel, R.E. Smalley, Advances in Laser Science-II: Proceedings of the 2nd International Laser Science Conference, Seattle, WA (October 20-24, 1986) [PDF]

5. “Laser induced autofluorescence of human arteries,” M. Sartori, D. Weilbaecher, P.D. Henry, G.L. Valderrama, S. Kubodera, R.C. Chin, M.J. Berry, F.K. Tittel, R. Sauerbrey,  59th Scientific Session of the American Heart Association, Dallas, TX (November 17-20, 1986)

6. “Tissue morphologic analysis and ablation rates in the UV and visible for laser angioplasty,” M. Sartori, P.D. Henry, R. Roberts, R. Sauerbrey, F.K. Tittel, Advances in Laser Science-I, Dallas, TX (November 18-22, 1985) [PDF]

7. “Multiwavelength Excimer Laser Studies,” Y. Zhu, R.A. Sauerbrey, F.K. TIttel, W.L. Wilson, W.L. Nighan, Advances in Laser Science-I, Dallas, TX (November 18-22, 1986) [PDF]

8. “Spectroscopic Studies of Supersonic Semiconductor Clusters,” Y. Liu, J. Heath, S. O’Brien, Q.L. Zheng, R.E. Smalley, R.F. Curl, F.K. Tittel, Advances in Laser Science-I, Dallas, TX (November 18-22, 1986) [PDF]

9. “Color Center Laser Spectroscopy of Free Radicals,” C.B. Dane, W.B. Yan, D. Zeitz, J.L. Hall, R.F. Curl, Jr., J.V.V. Kasper, F.K. Tittel, Advances in Laser Science-I, Dallas, TX (November 18-22, 1986) [PDF]

10. “Kinetic Spectroscopy Using a Color Center Laser,” J.W. Stephens, J.L. Hall, D. Zeitz, R.F. Curl, Jr., G.P. Glass, J.V.V. Kasper, F.K. Tittel, Advances in Laser Science-I, Dallas, TX (November 18-22, 1986) [PDF]

1985 Presentations:

1. “Laser-induced autofluorescence- a new medical imaging technique for diagnosis of the arterial wall,” R. Sauerbrey, M. Sartori, S. Kubodera, F.K. Tittel, P.D. Henry, 58th Scientific Sessions of The American Heart Association, Washington, DC (November 11-14, 1985)

2. “Power and wavelength dependence of pulsed uv-visible laser ablation rate in dog and atherosclerotic human aortas,” M. Sartori, P.D. Henry, D. Weilbaecher, R. Roberts, R. Sauerbrey, F.K. Tittel, 58th Scientific Sessions of The American Heart Association, Washington, DC (November 11-14, 1985)

3. “Tissue morphologic analysis and ablation rates in the uv and visible for laser angioplasty,” M. Sartori, P.D. Henry, R. Roberts, R. Sauerbrey, F.K. Tittel, Advances in Laser Science-I, Dallas, TX (1985)

1983 Presentations:

1 . “Triatomic Rare Gas Halide Excimers”, D. L. Huestis, G. Marovsky, F. K. Tittel, Excimer Lasers – 1983, Lake Tahoe, NV, (January 10-12, 1983) [PDF]

2 . “Quenching and Formation Processes of XeF and Xe2F Excimers”, R. Saurbrey. W. Walter, F. K. Tittel, W. Wilson, Excimer Lasers – 1983, Lake Tahoe, NV, (January 10-12, 1983) [PDF]

3 . “Kinetic Spectroscopy with the Color Center Laser”, J. L. Hall, H. Adams, L. A. Russel, J. V. V. Kasper, F. K. Tittel, R. F. Curl, International Conference on Lasers ’83, San Francisco, CA, (December 12-16 1983) [PDF]

4 . “High Efficiency Blue-Green XeF (C->A) Laser”, Y. Nachshon, F. K. Tittel, W. Wilson, W. L. Nighan,  International Conference on Lasers ’83, San Francisco, CA, (December 12-16 1983) [PDF]

1982 Presentations:

1 . “Longitudinal electron-beam pumped rare gas-halide excimer lasers,” W.L. Wilson, Jr., F.K. Tittel, W. Walter, R. Sauerbrey, G. Marowsky, Int’l Conf. on Lasers ’82, New Orleans, LA (December 13-17, 1982) [PDF]

2. “Color center lasers for high resolution spectroscopy,” F.K. Tittel, R.F. Curl, Jr., J.V.V. Kasper, Int’l Conf. on Lasers ’82, New Orleans, LA (December 13-17, 1982) [PDF]

1981 Presentations:

“High Sensitivity Color Center Laser Spectroscopy”, R. F. Curl, J. V. V. Kasper, P. G. Carrick, E. Koester, F. K. Tittel, Laser Spectroscopy V, Alberta, Canada (June 29 – July 3, 1981) [PDF]

1980 Presentations:

1 . “A Tunable F2+ – Color Center Ring Laser”, C. R. Polluck, F. K. Tittel, G. Litfin, International Conference on Lasers ’80, New Orleans, LA, (Decmber 15-19 1980) [PDF]

2. “Color-Center Laser Spectroscopy of small Free Radicals”, C. R. Pollock, R. F. Curl, F. K. Tittel, G. Litfin, J. V. V. Kasper, Beijing/Shanghai International Conference on Lasers, Shanghai, China (May 5-10, 1980) [PDF]

3. “Studies of Tunable Electron Beam Pumped Excimer Lasers,” F.K. Tittel, W.L. Wilson,  Jr., G. Marowsky, W. Ernst, M. Smayling, Beijing/Shanghai International Conference on Lasers, Shanghai, China (May 5-10, 1980) [PDF]

1978 Presentations:

1. “Electron Beam Excited Rare Gas-Dye Vapor Laser Systems”, G. Marowsky, R. Cordray, W. L. Wilson, F. K. Tittel, 8th Conf. On Quantum Electronics and Nonlinear Optics (EKON-78), Poznan, Poland (April 24-27, 1978)

2. “Direct Mixing at 311 microns in Point Contact Diodes,” P.J. Epton, W.L. Wilson, F. Tittel, T.A. Rabson, Proc. of the Int’l Conf. on Lasers ’78, Orlando, FL (December 11-15, 1978) [PDF]

1977 Presentations:

“Optical Data Storage in Photorefractive Materials,” T.A. Rabson, F.K. Tittel, D.M. Kim, SPIE 128 Effective Utilization of Optics in Radar Systems, (1977) [PDF]

1970 Presentations:

1. “Intensity Correlations in Optical Nonlinear Processes by Photon Counting Techniques,” J. Klebba, F. Tittel, F. Davidson, SWIEEECO Record of Technical Papers, Dallas, TX (April 22-24, 1970) [PDF]

2. “Simultaneous Phase-Locking and Mode Selection Through the Use of Electrooptic Crystals,” T.A. Rabson, F. Tittel, A.D. Vlassopoulos, SWIEEECO Record of Technical Papers, Dallas, TX (April 22-24, 1970) [PDF]

1963 Presentations:

“High repetition rate pulsed lasers,” W.R. Mallory, K.F. Tittel, Proc. of the Symposium on Optical Masers, Polytechnic Institute of Brooklyn, Syracuse, New York (April 16-19, 1963) [PDF]

1962 Presentations:

“Parametric Photon Interactions and Their Applications”, H. Hsu, F. K. Tittel, Symposium on Lasers and Applications, Columbus, OH, (November 7 – 8 1962)