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2002 to Present

Bolded publications signify peer review while the non bolded signify conference. 

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Amzajerdian

    1. Farzin Amzajerdian, Diego Pierrottet, Larry Petway, Glenn Hines, Bruce Barnes, and George Lockard, “Fiber Doppler Lidar for Precision Navigation of Space Vehicles,” in Fiber Laser Applications(The Optical Society of America, Washington, DC, 2012), FTh3.1A.2
    2. F. Amzajerdian, B. Meadows, N. Bake< ar, M. J. Kavaya, and U. N. Singh, “Long lifetime operation of Coherent Doppler Wind Lidar in space,” 30th Meeting of the Working Group on Space-Based Lidar Winds, Wintergreen, VA (8-11 July 2008)
    3. Farzin Amzajerdian, “Role of Lidar Technology in Future NASA Space Missions,” Symposium of Materials and Devices for Laser Remote Sensing and Optical Communication, Materials Research Society Spring Meeting, San Francisco, CA (March 24 – 27, 2008)
    4. F. Amzajerdian and B. L. Meadows, “Optimization of high power laser diode arrays for long duration operation in space,” Conference on Applications of High Power Semicoductor Lasers, San Diego, CA, September 17-19, 2007
    5. Farzin Amzajerdian, Byron L. Meadows, Nathaniel R. Baker, Bruce W. Barnes, Upendra N. Singh, and Michael J. Kavaya, “Qualification testing of laser diode pump arrays for a space-based 2-micron coherent Doppler lidar,” The 14th Coherent Laser Radar Conference, Snowmass, CO (July 8-13, 2007)
    6. Farzin Amzajerdian, Byron L. Meadows, Nathaniel R. Baker, Bruce W. Barnes, Upendra N. Singh, and Michael J. Kavaya, “ Improving lifetime of quasi-CW laser diode arrays for pumping 2-micron solid state lasers,” SPIE Defense and Security Symposium, Proc. SPIE Vol. 6550 (9 – 13 April 2007)
    7. Farzin Amzajerdian, Byron L. Meadows, Bruce W. Barnes, George E. Lockard, Upendra N. Singh, Michael J. Kavaya, and Nathaniel R. Baker, “Reliability of High Power Laser Diode Arrays Operating in Long Pulse Mode,” Conference on Lasers and Electro-Optics (CLEO), Long Beach, CA (May 21-26, 2006)
    8. F. Amzajerdian, B. L. Meadows, B. W. Barnes, N. R. Baker, R. P. Baggott, M. J. Kavaya, and U. N. Singh,, “Long-duration Operation of 2-micron Coherent Doppler Lidar in Space,” 13th Coherent Laser Radar Conference, Kamakura, Japan  (16-20 October 2005)
    9. Farzin Amzajerdian, Byron Meadows, Nathaniel Baker, Bruce Barnes, George Lockard and Renee Baggott, “Thermal Characteristics of High Power Laser Diode Arrays,” Diode-laser Array Working Group, NASA Langley Research Center, August 16, 2005
    10. F. Amzajerdian, B. Meadows, N. Baker, B. Barnes, R.  S. Payne-Baggott, G. Lockard, U. N. Singh, and M. J. Kavaya, “Improving reliability of high power quasi-CW laser diode arrays for pumping solid state lasers,” Proc. SPIE 5887, p. 78, Lidar Remote Sensing for Environmental Monitoring VI, San Diego, CA (31 July – 4 Aug. 2005)
    11. F. Amzajerdian, B. Meadows, M. J. Kavaya, and U. N. Singh, “Long-duration Operation of Coherent Doppler Lidar in Space”, Digest of the 24th  Meeting of the Working Group on Space-Based Lidar Winds, Welches, OR  (28 June – 1 July 2005)
    12. Farzin Amzajerdian, Byron Meadows, Nathaniel Baker, Bruce Barnes, and Renee Baggott, “Advancement and Characterization of Laser Diode Arrays,” Diode-laser Working Group Meeting, NASA Jet Propulsion Laboratory, May 24, 2005
    13. F. Amzajerdian, D. Pierrottet, M. Kavaya, and U. Singh (NASA/LaRC), “Optimum Integrated Heterodyne Photoreceiver for Coherent Lidar Applications,” Digest of the 2005 MRS (Materials Research Society) Spring Meeting, San Francisco, CA (28 Mar. – 1 Apr. 2005)
    14. F. Amzajerdian, B. L. Meadows, U. N. Singh, M. J. Kavaya, N. R. Baker, and R. S. Baggott, “Advancement of High Power Quasi-CW Laser Diode Arrays For Space-based Laser Instruments,” Proc. SPIE 5659, p. N/A, Fourth International Asia-Pacific Environmental Remote Sensing Symposium, Conference on Lidar Remote Sensing for Industry and Environmental Monitoring AE102, Honolulu, HI (8-12 Nov 2004)
    15. F. Amzajerdian, M. J. Kavaya, and U. N. Singh, “Advancement of Lidar Technologies at NASA Langley,” Digest of the 22nd Meeting of the Working Group on Space-Based Lidar Winds, Frisco, CO (29 June – 1 July 2004)
    16. F. Amzajerdian, B. Meadows, N. Baker, V. Sudesh, M. J. Kavaya, and U. Singh, “Risk Reduction and Advancement of High Power Quasi-CW Laser Diode Pump Arrays,” 17th Solid State and Diode Laser Technology Review (SSDLTR), Albuquerque, NM (8-10 June 2004)
    17. F. Amzajerdian, M. J. Kavaya, U. N. Singh, and J. Yu, “2-micron Coherent Doppler Lidar For Space-based Global Wind Field Mapping,” Invited Paper, 2003 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2003), Toulouse, France (21-25 July 2003)
    18. F. Amzajerdian, B. Meadows, M. J. Kavaya, U. N. Singh, V. Sudesh, and N. Baker, “High Power Laser Diode Arrays for 2-micron Solid State Coherent Lidars Applications,” 12th Coherent Laser Radar Conference, Bar Harbor, ME (15-21 June 2003)
    19. Edward F. Stephens, G. Jay Doster, and Farzin Amzajerdian, “Characterization of Diamond Heat Sink and Diamond Substrate Diode Arrays,” 16th Solid State and Diode Laser Technology Review, Directed Energy Professional Society, Albuquerque, New Mexico, May 20-22, 2003
    20. F. Amzajerdian, B. Meadows, V. Sudesh, N. Baker, M. J. Kavaya, and U. N. Singh, “Advancements and Risk Reduction of Laser Diodes for Coherent Wind Lidar,” Digest of the 19th Meeting of the Working Group on Space-Based Lidar Winds, Oxnard, CA (17-19 Feb. 2003)
    21. F. Amzajerdian, M. J. Kavaya, and U. N. Singh, “Status of the Advanced Lidar Technology Project at NASA/LaRC,” Digest of the 18th Meeting of the Working Group on Space-Based Lidar Winds, North Conway, NH (15-18 July 2002)
    22. F. Amzajerdian, G. Koch, B. Barnes, C. Mills, M. J. Kavaya, and U. N. Singh, “Development of Mobile Validation Lidar Facility at NASA/LaRC,” Digest of the 17th Meeting of the Working Group on Space-Based Lidar Winds, Key West, FL (23-25 Jan. 2002)

 

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Axenson

  1. T.J. Axenson, N.P. Barnes, D.J. Reichle, and G.E. Lockard, “Efficiently Seeded Diode Pumped Laser At 0.946 mm,” CLEO Conference, San Francisco (2004)
  2. T.J. Axenson, N.P. Barnes, and D.J. Reichle, “Quadruple Pass Amplifier For A Q-switched 0.946 mm Laser,” Advanced Solid State Photonics Conference, San Antonio TX, (2003)
  3. T.J. Axenson, N.P. Barnes, and D.J. Reichle, “Q-switched Diode Pumped Laser Comparison, Nd:GYAG Versus Nd:YAG At 0.946 mm,” CLEO Conference, Baltimore, MD (2003)
  4. T.J. Axenson, N.P. Barnes, and D.J. Reichle, “Amplifier For A Q-switched Solid State Diode Pumped Laser Amplifier Operating At 0.946 mm,” CLEO Conference, Long Beach, CA (2002)
  5. T.J. Axenson, N.P. Barnes, D.J. Reichle, and E.E. Ertur, “High Energy, Q-switched 0.946 mm Solid State Diode Pumped Laser,” J. Opt. Soc. Am. B 19 1535-1539 (2002)
  6. T.J. Axenson, N.P. Barnes, and D.J. Reichle, “Power Amplifier For A Q-switched Solid State Diode Pumped Laser Operating At 946 nm,” Remote Sensing Of The Atmosphere, Ocean, Environment, And Space Symposium, Hangzhou, China (2002)

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Bai

  1. Yingxin Bai, Jirong Yu, Mulugeta Petros, Songsheng Bo Trieu, Paul Petzar, and  Upendra N. Singh., “Fully conductively cooled, diode-pumped Ho:Tm:LuLiF4 laser oscillator/amplifier,” Opt. Lett. 37, 2562-2564 (2012)
  2. Yingxin Bai, Jirong Yu, Brian M. Walsh, Songsheng Chen, M. Petros, Norman P. Barnes, U. Singh, Arlete Cassanho, and Hans P. Jessen, “Spectroscopic Properties and 2 mm Laser Operation of Ho:BaYLuF8” in Advanced Solid-State Photonics(The Optical Society of America, Washington, DC, 2011), ATuB4.
  3. Yingxin Bai, Jirong Yu, Songsheng Chen, Mulugeta Petros, Paul Petzar, and Upendra N. Singh, “Tm:Fiber Laser Resonantly-Pumped Ho:YLF Laser for air/space borne lidar application,” in Fiber Laser Applications(The Optical Society of America, Washington, DC, 2011), FWC3.
  4. Yingxin Bai, Jirong Yu, Paul Petzar, Mulugeta Petros, Songsheng Chen, Bo Trieu, Hyung Lee, and Upendra Singh; “Single Longitudinal Mode, High Repetition Rate, Q-Switched Ho:YLF Laser for Remote Sensing,” CLEO/IQEC 09, Baltimore, MD, May 31 – June 5, 2009
  5. Yingxin Bai, Jirong Yu, Bo Trieu, Mulugeta Petros, Paul Petzar, Hyung Lee, and Upendra Singh; “Conductively Cooled Ho:Tm:LuLiF Laser Amplifier,” paper CTuAA2, CLEO/QELS 08, San Jose, CA, May 4-9, 2008
  6. Y. Bai, M. Petros, J. Yu, P. Petzar, B. Trieu, H. Lee, and U. Singh, “Highly efficient Ho:YLF laser pumped by Tm:fiber laser,” CThFF4, Conference on Lasers and Electro-Optics (CLEO), Long Beach, CA (May 21-26, 2006)
  7. Yingxin Bai, Mulugeta Petros, Jirong Yu, Paul Petzar, Bo C. Trieu, Sam Chen, Hyung R. Lee, and Upendra Singh, “Highly efficient operation of Tm:fiber laser Pumped Ho:YLF laser” Advanced Solid-state Photonics, TuB7, Lake Tahoe, Incline Village, Nevada, January 29-February1, 2006
  8. Yingxin Bai, Jirong Yu, N. P. Barnes, Songsheng Chen, Mulugeta Petros, Hyung R. Lee, B. C. Trieu and U. N. Singh, “The application of PPLN sum frequency generation in mid-infrared detection.” 2005 IEEE LEOS Annual Meeting Conference Proceedings, MF5, Sydney, Australia, October 23-27, 2005
  9. Yingxin Bai, Jirong Yu, N. P. Barnes, Songsheng Chen, Mulugeta Petros, Hyung R. Lee, “Non-linear frequency up-conversion for mid-infrared single photon detection.” SPIE Lidar Remote Sensing for Industry and Environmental Monitoring V, page no 43-50, Honolulu, Hawaii, November 9-11, 2004.
  10. Yingxin Bai, Jirong Yu, N. P. Barnes, Mulugeta Petros, and Songsheng Chen,“ Compact intracavity pumped continuous-wave singly resonant PPLN OPO. ” Conference of Lasers and Electro-Optics (CLEO), CMI 2, San Francisco, California, May 17-20, 2004
  11. Yingxin Bai, Jirong Yu, N. P. Barnes, Hyung Lee, Mulugeta Petros, and Songsheng Chen, “Tunable mid-infrared coherent source for lidar: CW OPO.” SPIE Lidar Remote Sensing for Environmental Monitoring IV, page no 46-51, San Diego, California, August 3-4, 2003
  12. Yingxin Bai, Jirong Yu, N. P. Barnes, Mulugeta Petros, and Songsheng Chen,“ Intracavity pumped traveling-wave optical parametric oscillator.” Conference of Lasers and Electro-Optics (CLEO), CTuM 13, Baltimore, Maryland, June 1-6, 2003

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B. Barnes

  1. B. W. Barnes, G. J. Koch, M. Petros, J. Y. Beyon, F. Amzajerdian, J. Yu, M. J. Kavaya, and U. N. Singh, “Wind Measurements with High Energy 2 mm Coherent Doppler Lidar,” Digest of the 22nd International Laser Radar Conference (ILRC), p. 801-804, Matera, Italy (July 12-16, 2004)
  2. B.W. Barnes, G.J. Koch,  Low Cost Coherent Doppler Lidar Data Acquisition and Processing, Proceedings of the 12th Coherent Laser Radar Conference, p129-132, Bar Harbor, Maine (June 15-20, 2003)

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N. Barnes

    1. N. P. Barnes, B.M. Walsh, F. Amzajerdian, D.J. Reichle, G.E. Busch, and W.A. Carrion, “Measurement of Upconversion in Er:YAG and Influence on Laser Performance”, IEEE Journal of Quantum Electronics, 49, 238 (2013).
    2. Norman P. Barnes, Brian M. Walsh, Donald J. Reichle, “Diode Pumped, 0.61 μm, Eu:YAG Laser” in Lasers, Sources, and Related Photonic Devices Technical Digest (The Optical Society of America, Washington, DC, 2012), AT4A.24.
    3. Norman P. Barnes, Brian M. Walsh, Farzin Amzajerdian, Donald J. Reichle, George E. Busch, and William A. Carrion, “Up conversion measurements in Er:YAG; comparison with 1.6 μm laser performance,” Optical Materials Express,  1, 678-685 (2011).
    4. N.P. Barnes, F. Amzajerdian, D.J. Reichle, W.A. Carrion, G.E. Busch, and P. Leisher,”Diode Pumped Ho:YAG And Ho:LuAG Lasers, Q-switching And Second Harmonic Generation, Appl. Phys B, 57-66 (2011)
    5. Norman P. Barnes, Farzin Amzajerdian, Brian M. Walsh, Donald Reichle, George Busch, and William Carrion, “Measurement of Upconversion in Er:YAG and Comparison With Laser Performance,” in Advances in Optical Materials (The Optical Society of America, Washington, DC, 2011), A1ThB9.
    6. N.P. Barnes, B.M. Walsh, D.J. Reichle, R.J. DeYoung,  “Tm:fiber lasers for remote sensing”, Opt. Mat., 31, 1061-1064 (2009).
    7. N.P. Barnes, B.M.Walsh, “Chemistry, Quantum Mechanics and Health of  Planet Earth,” ECS Trans., 16, 61-68 (2009).
    8. N.P. Barnes, B.M. Walsh, D.J. Reichle, “Tm:Glass Laser Dynamics And Quantum Efficiency,” in 15thInternational Conference on Luminescence ’08 Technical Digest, TuC1-O14 (2008).
    9. N.P. Barnes, B.M. Walsh, D.J. Reichle, R.J. DeYoung, S. Jiang, “Tm : germanate fiber laser: tuning and Q-switching,” Appl. Phys. B – Lasers and Optics, 89,  299-304 (2007).
    10. N.P. Barnes, B.M. Walsh, D.J. Reichle, “Asymmetric Time Constants,” in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies 2007 Technical Digest(Optical Society of America, Washington, DC, 2007), CTuN4.
    11. N.P. Barnes, B.M. Walsh, D.J. Reichle, “Tuning and Q-switching Tm:germanate fiber laser,” in Advanced Solid-State Photonics 2007 Technical Digest(The Optical Society of America, Washington, DC, 2007), WB8.
    12. N. P. Barnes, “Solid-State Lasers From an Efficiency Perspective,” IEEE J. of Selected Topics in Quantum Electronics, Vol. 13, No. 3, 435-447 (May/June 2007)
    13. N.P. Barnes, B.M. Walsh, D.J. Reichle, and S. Jiang, “Spectroscopy and Laser Performance of a Pulsed Tm:germanate Fiber Laser,” inAdvanced Solid-State Photonics 2006 Technical Digest (The Optical Society of America, Washington, DC, 2006), TuB4.
    14. N.P. Barnes, B.M. Walsh, S. Jiang, “Spectroscopy of Tm:Germanate For Fiber Lasers”, Proceedings 13th Coherent Laser Radar Conference, Kamakura, Japan, 16-21 October (2005), pp 62-65.
    15. N.P. Barnes, B.M. Walsh, D.J. Reichle, and T.J. Axenson, “Lasers for Remote Sensing: Common Solutions for Uncommon Wavelengths in Lidar Remote Sensing for Industry and Environment Monitoring V, edited by Upendra N. Singh, Kohei Mizutani, Proceedings of SPIE, vol. 4893, (SPIE, Bellingham, WA 2005), pp 33-42.
    16. N.P. Barnes, “Lasers For Remote Sensing At NASA” Military Sensing Symposia, Laurel, Maryland, (2005)
    17. N.P. Barnes, D.J. Reichle, B.M. Walsh, T.J. Axenson, and R.S. Baggott, “Diode Pumped Tm:YAG and Tm:YLF: A Comparison,” Advanced Solid State Photonics Conference, Vienna, Austria (2005)
    18. N.P. Barnes, B.M. Walsh, and S. Jiang, “Spectroscopy Of Tm:germanate For Fiber Lasers,” Coherent Laser Radar Conference, Kamakura, Japan, (2005)
    19. N.P. Barnes, B.M. Walsh, D.J. Reichle, and S. Jiang, “Spectroscopy And Laser Performance Of A Pulsed Tm:germanate Fiber Laser,” Advanced Solid State Photonics Conference, Incline Village, NV (2005)
    20. N.P. Barnes and B.M. Walsh, “Synchronous Tunable Optical Pulses,” in OSA Trends in Optics and Photonics, Vol. 94, Advanced Solid-State Photonics, Gregory J. Quarles, ed. (Optical Society of America, Washington, D.C., 2004), pp 269-273.
    21. N.P. Barnes Invited ” Compositionally Tuned Lasers: Practical Lasers At Designer Wavelengths” International Workshop On Photonic And Electronic Materials, San Sebastian, Spain (2004)
    22. N. P. Barnes and B.M. Walsh, “Tm:glass laser pumping a Ho:YAG laser,” in Proceedings of SPIE, vol. 4893, Lidar Remote Sensing for Industry and Environment Monitoring III, (International Society for Optical Engineering, Washington, D.C., 2003), pp 176-182.
    23. N. P. Barnes, B. M. Walsh, and E.D. Filer, “Ho-Ho upconversion; Applications to Ho Lasers,” Journal of the Optical Society of America B, 20, 1212-1219 (2003)
    24. N.P. Barnes, T.J. Axenson, D.J. Reichle, and B.M. Walsh, “Diode-pumped laser amplifiers: application to 0.946 mm Nd:YAG,” Journal of Physics B: Atomic, Molecular and Optical Physics, 36, 879-891 (2003).
    25. N.P. Barnes, B.M. Walsh, “Dispersive tuning and performance of a pulsed Nd:YAG laser,” in Advanced Solid State Photonics, vol. 83 of OSA Trends In Optics and Photonics Series (Optical Society of America, Washington, D.C., 2003), pp 38-41.
    26. N.P. Barnes and B.M. Walsh, “Relaxation oscillation suppression in Nd:YAG lasers using intra resonator harmonic generation,” Technical digest of the Conference on Lasers and Electro-Optics, Baltimore, Maryland, June 1-6, 2003, paper CFM5
    27. N.P Barnes, B.M. Walsh, and R.E. Davis, “Dispersive Tuning And Performance Of A Pulsed Nd:YAG Laser,” Advanced Solid State Photonics Conference, San Antonio TX, (2003)
    28. N.P. Barnes, “Compositionally Tuned Lasers For Remote Sensing,” Proceedings of the ISSLON Conference, Keystone CO, (2003)
    29. N.P. Barnes, B.M. Walsh, and P.J. Thomas, “Relaxation Oscillation Suppression In Nd:YAG Laser Using Intra Resonator Harmonic Generation,” CLEO Conference, Baltimore, MD (2003)
    30. N.P. Barnes (Invited), “Role Of Nonlinear Optics In NASA Remote Sensing Program,” LEOS 2003 Conference, Tucson, AZ October (2003)
    31. N.P. Barnes, B.M. Walsh, E.D. Filer, R.L. Hutcheson, and R.W. Equal, “Compositional Wavelength Tuning Predictions For Garnets; Comparison With Experimental Results,” Advanced Solid State Laser Conference, Quebec City, Canada (2002)
    32. N.P. Barnes and B.M. Walsh, “Ho Laser Pumped By Tm:fiber Laser For Remote Sensing,” Remote Sensing Of The Atmosphere, Ocean, Environment, And Space Symposium, Hangzhou, China (2002)
    33. N.P Barnes and B.M. Walsh, “Quantum Efficiency Measurements Of Nd:YAG, Yb:YAG, and Tm:YAG,” Proceedings Of Advanced Solid State Lasers, TOPS 68 (2002)
    34. N.P. Barnes and B.M. Walsh, “Ho Laser Pumped By Tm:fiber Laser For Remote Sensing,” Remote Sensing Of The Atmosphere, Ocean, Environment, And Space Symposium, Hangzhou, China (2002)

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Chen

  1. Songsheng Chen, Jirong Yu, Bo C. Trieu, Upendra N. Singh, Michael J. Kavaya, Mulugeta Petros, and Yingxin Bai, “130 mJ, 10 Hz, Q-switched diode-pumped Ho:Tm:LuLF laser oscillator at 2.05 microns,” Conference on Lasers and Electro-Optics (CLEO), Baltimore, MD (May 22-27, 2005)
  2. S. Chen, J. Yu, M. Petros, Y. Bai, B. C. Trieu, M. J. Kavaya, and U. N. Singh, “One-Joule Double-pulsed Ho:Tm:LuLF Master-Oscillator-Power-Amplifier (MOPA),” Advanced Solid State Photonics 20th Anniversary Topical Meeting in Vienna, Austria (Feb. 6-9, 2005)
  3. S. Chen, J. Yu, M. J. Kavaya, U. N. Singh, M. Petros, and Y. Bai, “Joule level double-pulsed Ho:Tm:LuLF Master-Oscillator-Power-Amplifier (MOPA) for potential spaceborne lidar applications,” Invited Paper, Proc. SPIE 5653, p. 175, Fourth International Asia-Pacific Environmental Remote Sensing Symposium, Conference on Lidar Remote Sensing for Industry and Environmental Monitoring AE102, Honolulu, HI (8-12 Nov 2004)
  4. S. Chen, J. Yu, U. N. Singh, M. Petros, Y. Bai, B. C. Trieu, and M. J. Kavaya, “High Pulse Energy Diode-Pumped Ho:Tm:LuLF Laser at 2.05 mm For Infrared Laser Radar Remote Sensing,” Digest of the 22nd International Laser Radar Conference (ILRC), p. 183-186, Matera, Italy (July 12-16, 2004)

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Kavaya

    1. M. Kavaya, J. Beyon, G. Creary, G. Koch, M. Petros, P. Petzar, U. Singh, and J. Yu, “Preliminary Results of Flying the DAWN Coherent Wind Profiling Lidar on NASA’s DC-8 during the GRIP Campaign,” 33rd Meeting of the Working Group on Space-Based Lidar Winds, Boulder, CO (2-4 Aug 2011)
    2. M. J. Kavaya, J. Y. Beyon, G. A. Creary, G. J. Koch, M. Petros, P. J. Petzar, U. N. Singh, B. C. Trieu, and J. Yu, “DAWN Coherent Wind Profiling Lidar Flights on NASA’s DC-8 during GRIP,” 16th Coherent Laser Radar Conference, Long Beach, CA USA (20-24 June 2011)
    3. M. J. Kavaya, “Flight Results of the Langley DAWN Coherent Wind Lidar During the NASA GRIP ,” ISS Winds Mission Science Workshop, Coconut Grove, FL (10-11 February 2011)
    4. M. J. Kavaya, “Optimum laser PRF study for pulsed wind lidars,” 32nd Meeting of the Working Group on Space-Based Lidar Winds, Coconut Grove, FL (8-9 February 2011)
    5. M. J. Kavaya, “Flight Results of the Langley DAWN Coherent Wind Lidar During the NASA GRIP ,” 32nd Meeting of the Working Group on Space-Based Lidar Winds, Coconut Grove, FL (8-9 February 2011)
    6. M. J. Kavaya, “Modifying the 3-D Winds Space Concept for Aircraft Science Campaigns Wind Measurements,” 30th Meeting of the Working Group on Space-Based Lidar Winds, Destin, FL (2-4 February 2010)
    7. M. J. Kavaya, J. Y. Beyon, G. J. Koch, P. J. Petzar, U. N. Singh, B. C. Trieu, and J. Yu, “Airborne Lidar Development Status and Plans,” 30th Meeting of the Working Group on Space-Based Lidar Winds, Destin, FL (2-4 February 2010)
    8. Michael J. Kavaya, Upendra N. Singh, Jirong Yu, Grady J. Koch, Bo C. Trieu, Jeffrey Y. Beyon, Mulugeta Petros, Paul J. Petzar, and Bruce M. Gentry, “Space-Based Wind Ladar Development at NASA,” Invited Paper, 2009 Meeting of the Military Sensing Symposia Specialty Group on Active E-O Systems, Las Vegas, NV (21-24 September 2009)
    9. Michael J. Kavaya, Upendra N. Singh, Grady J. Koch, Jirong Yu, Bo Trieu, Mulugeta Petros, and Paul Petzar, ” Development of a Compact, Pulsed, 2-Micron, Coherent-Detection, Doppler Wind Lidar Transceiver; and Plans for Flights on NASA’s DC-8 and WB-57 Aircraft,” Coherent Laser Radar Conference, Toulouse, France (22-25 June 2009)
    10. Michael J. Kavaya, Upendra N. Singh, Grady J. Koch, Jirong Yu, and Rod G. Frehlich, “Computer Simulation of Global Profiles of Carbon Dioxide Using a Pulsed, 2-Micron, Coherent-Detection, Column-Content DIAL System,” Coherent Laser Radar Conference, Toulouse, France (22-25 June 2009)
    11. M. J. Kavaya, G. J. Koch, U. N. Singh, and J. Yu, “DAWN Results and Status of DAWN-AIR1 and DAWN-AIR2,” 29th Meeting of the Working Group on Space-Based Lidar Winds, Destin, FL (27-30 January 2009)
    12. M. J. Kavaya, U. N. Singh, G. J. Koch, J. Yu, F. Amzajerdian, B. C. Trieu, and M. Petros, “Compact, Engineered, 2-Micron Coherent Doppler Wind Lidar Transceiver,” Digest of the 23rd International Laser Radar Conference (ILRC), Nara Japan (24-28 July 2006)
    13. M. J. Kavaya, G. J. Koch, J. Yu, U. N. Singh, B. Trieu, F. Amzajerdian, and M. Petros, “LaRC Instrument Incubator Project Update,”  Digest of the 25th  Meeting of the Working Group on Space-Based Lidar Winds, Key West, FL  (17-20 Jan 2006)
    14. M. J. Kavaya, G. J. Koch, J. Yu, U. N. Singh, F. Amzajerdian, J. Wang, and M. Petros, “Compact, Engineered, 2-Micron Coherent Doppler Wind Lidar Prototype: A New NASA Instrument Incubator Program Project,” 13th Coherent Laser Radar Conference, Kamakura, Japan  (16-20 October 2005)
    15. M. J. Kavaya, G. J. Koch, J. Yu, U. N. Singh, F. Amzajerdian, and J. Wang, “Compact, Engineered, 2-Micron Coherent Doppler Wind Lidar Prototype: a NASA IIP Selected Proposal”, Digest of the 24th  Meeting of the Working Group on Space-Based Lidar Winds, Welches, OR  (28 June – 1 July 2005)
    16. M. J. Kavaya, F. Amzajerdian, J. Yu, G. J. Koch, and U. N. Singh, “Technology Readiness Levels of Coherent Doppler Wind Lidar for Earth Orbit”, Digest of the 24th  Meeting of the Working Group on Space-Based Lidar Winds, Welches, OR  (28 June – 1 July 2005)
    17. M. J. Kavaya, U. N. Singh, F. Amzajerdian, G. J. Koch, and J. Yu, “Improved Weather Prediction, Climate Understanding, and Weather Hazard Mitigation through Global Profiling of Horizontal Winds with a Pulsed Doppler Lidar System,” Concept Paper Submitted to the National Research Council (NRC) Space Studies Board (SSB) (16 May 2005)
    18. M. J. Kavaya and U. N. Singh, “Status of the Laser Risk Reduction Program at LaRC,” Digest of the 23rd Meeting of the Working Group on Space-Based Lidar Winds, Sedona, AZ (1-3 Feb. 2005)
    19. M. J. Kavaya, F. Amzajerdian, G. Koch, J. Yu, and U. Singh, “Components of the Space-Based Lidar Winds Roadmap,” Digest of the 23rd Meeting of the Working Group on Space-Based Lidar Winds, Sedona, AZ (1-3 Feb. 2005)
    20. M. J. Kavaya, G. J. Koch, M. Petros, J.Y. Beyon, F. Amzajerdian, J. Yu, and U. N. Singh, “Test Bed Doppler Wind Lidar and Intercomparison Facility at NASA Langley,” Proc. SPIE 5653, p. 167, Fourth International Asia-Pacific Environmental Remote Sensing Symposium, Conference on Lidar Remote Sensing for Industry and Environmental Monitoring AE102, Honolulu, HI (8-12 Nov 2004)
    21. M. J. Kavaya, G. Koch, D. Emmitt, and S. Wood, “GWOLF and VALIDAR Comparisons,” Digest of the 21st Meeting of the Working Group on Space-Based Lidar Winds, Sedona, AZ (27-29 Jan. 2004)
    22. M. J. Kavaya, U. N. Singh, W. S. Heaps, and T. Cazeau, “NASA’s New Laser Risk Reduction Program For Future Space Lidar Missions,” 12th Coherent Laser Radar Conference, Bar Harbor, ME (15-21 June 2003)(presented by Dr. Farzin Amzajerdian)
    23. M. J. Kavaya and U. N. Singh, “Update on the NASA Laser Risk Reduction Program,” Digest of the 19th Meeting of the Working Group on Space-Based Lidar Winds, Oxnard, CA (17-19 Feb. 2003)
    24. M. J. Kavaya, F. Amzajerdian, U. N. Singh, J. Yu, and G. D. Emmitt, “Technology Plan for the Coherent Subsystem of a Space-Based Hybrid Doppler Wind Lidar,” Digest of the 18th Meeting of the Working Group on Space-Based Lidar Winds, North Conway, NH (15-18 July 2002)
    25. M. J. Kavaya, U. N. Singh, and F. Amzajerdian, “A New NASA Technology Development Program for Risk Reduction of Space-Based Lidar Missions,” Digest of the 17th Meeting of the Working Group on Space-Based Lidar Winds, Key West, FL, 23-25 Jan. 2002

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Koch

    1. Grady J. Koch, Jeffrey Y. Beyon,, Paul J. Petzar, Mulugeta Petros, Jirong Yu, Bo C. Trieu, Michael J. Kavaya, Upendra N. Singh,, Edward A. Modlin, Bruce W. Barnes, Belay Demoz , “Field Testing of a High-Energy 2-Micron Doppler Lidar,” Journal of Applied Remote Sensing, Vol. 4, 043512 (2010)
    2. G. J. Koch, U. N. Singh, M. J. Kavaya, and J. Y. Beyon, “Wind Measurement Intercomparisons using New Compact, Pulsed, 2-Micron, Coherent-Detection Doppler Lidar Transceiver,” Coherent Laser Radar Conference, Toulouse, France (22-25 June 2009)
    3. Koch, G. J.; Beyon, J. Y. ; Gibert, F.; Barnes, B. W. ; Ismail, S.; Petros, M.; Petzar, P. J.; Yu, J.; Modlin, E. A.; Davis, K. J.; and Singh, U. N., “Side-Line Tunable Laser Transmitter for Differential  Absorption Lidar Measurements of CO2: Design and Application to Atmospheric Measurements,” Applied Optics 47,  (7), pp. 944-956 (2008)
    4. G. J. Koch, J. Y. Beyon, B. W. Barnes, M. Petros, J. Yu, F. Amzajerdian, M. J. Kavaya, and U. N. Singh, “High-Energy 2-mm Doppler Lidar for Wind Measurements,” Opt. Engr. 46(11), 116201-1 to 116201-14 (2007)
    5. G. J. Koch, “Automatic Locking of Laser Frequency to an Absorption Peak,” NASA Tech Briefs 30 (2), 42-44 (December 2006)
    6. G.J. Koch, “Using a Doppler lidar detection and ranging (lidar) system to characterize an atmospheric thermal providing lift for soaring raptors,” Journal of Field Ornithology 77(3):1-4, 2006
    7. G. J. Koch, M. J. Kavaya, B. Barnes, J. Y. Beyon, M. Petros, J. Yu, F. Amzajerdian, and U. Singh, “Wind measurements with high-energy Doppler lidar, AMS, Atlanta, GA  (29 Jan. – 2 Feb. 2006)
    8. G. Koch, J. Beyon, B. Barnes, and M. J. Kavaya, “Wind Observations with the VALIDAR Doppler Lidar,” Digest of the 23rd Meeting of the Working Group on Space-Based Lidar Winds, Sedona, AZ (1-3 Feb. 2005)
    9. G.J. Koch, J.Y. Beyon, B.W. Barnes, and M.J. Kavaya, “Wind Observations with the VALIDAR Doppler Lidar,” 85th American Meteorological Society (AMS) Annual Meeting, San Diego, CA (Jan. 9-13, 2005)
    10. G. J. Koch, M. Petros, B. W. Barnes, J. Y Beyon, F. Amzajerdian, J. Yu, M. J. Kavaya, and U. N. Singh, “Validar: a testbed for advanced 2-micron Doppler lidar,” Proc. SPIE 5412, Laser Radar Technology and Applications IX (12-16 April 2004)
    11. G. J. Koch, B. W. Barnes, M. Petros, J. Y. Beyon, F. Amzajerdian, J. Yu, Davis, S. Ismail, S. Vay, M.J. Kavaya, and U.N. Singh, “Coherent Differential Absorption Lidar Measurements of CO2,” Applied Optics 43(26), 5092-5099 (2004)
    12. G. J. Koch, M. Petros, B. W. Barnes, J. Y. Beyon, F. Amzajerdian, M. J. Kavaya, and U. N. Singh, “Validar: A Testbed for Advanced 2-mm Coherent Doppler Wind Lidar”, 12th Coherent Laser Radar Conference, Bar Harbor, ME (15-21 June 2003)
    13. G. J. Koch, M. Petros, J. Yu, J. Y. Beyon, B. W. Barnes, F. Amzajerdian, R. E. Davis, M. J. Kavaya, S. Ismail, and U. N. Singh, “2-mm Coherent DIAL Measurements of Atmospheric CO2,” 12th Coherent Laser Radar Conference, Bar Harbor, ME (15-21 June 2003)
    14. G. J. Koch, F. Amzajerdian, M. J. Kavaya, U. N. Singh, M. Petros, and B. W. Barnes, “Development of a Mobile Lidar Facility at NASA/LaRC,” Digest of the 18th Meeting of the Working Group on Space-Based Lidar Winds, North Conway, NH (15-18 July 2002)
    15. G. J. Koch, M. Petros, B. W. Barnes, F. Amzajerdian, M. J. Kavaya, U. N. Singh, and J. W. Beyon, “Validar: A High-Energy 2-micron Coherent Doppler Lidar for Wind Measurements,” 21st International Laser Radar Conference, paper S2P.28, Quebec City, Quebec, Canada (8-12 July 2002)

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Lee

  1. Hyung Lee, Yingxin Bai, Jirong Yu, and U. Singh, “Proton and Gamma Radiation Effects in Undoped, Single-doped and co-doped YLF4 andLuLiF4”, JThE37, CLEO/IQEC 2009 in Baltimore, Maryland, May 31-June 5, 2009
  2. H. R. Lee, J. Yu, N. P. Barnes, and Y. Bai, “An injection-seeded narrow linewidth singly resonant ZGP OPO”, Advanced Solid State Photonics, Lake Tahoe, Nevada, Jan. 2006
  3. H. R. Lee, J. Yu, N. P. Barnes, and Y. Bai, “High pulse energy ZnGeP2 singly resonant OPO”, Advanced Solid State Photonics, Santa Fe, NM, Feb. 2004

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Meadows

  1. B. L. Meadows, F. Amzajerdian, B. W. Barnes, U. N. Singh, M. J. Kavaya, and N. R. Baker, “Lifetime Testing of Laser Diode Arrays,” ESA-NASA Working Meeting on Optoelectronics, Noordwijk, The Netherlands, (June 21-22, 2006)
  2. Byron Meadows, Farzin Amzajerdian, Nathaniel Baker, Bruce Barnes, George Lockard, “Long Pulse Operation of Laser Diode Arrays,” Diode Array Working Group, Northrup Grumman – Cutting Edge Optronics, November 29, 2005
  3. B. L. Meadows, F. Amzajerdian, B. W. Barnes, N. R. Baker, R. S. Baggott, U. N. Singh and M. J. Kavaya, “Reliability of Long Pulsewidth High Power Laser Diode Arrays,” Digest of the 2005 MRS (Materials Research Society) Spring Meeting, San Francisco, CA (28 Mar. – 1 Apr. 2005)
  4. B.L. Meadows, F. Amzajerdian, N. R. Baker, V. Sudesh, U. N. Singh, and M. J. Kavaya, “Thermal characteristics of high-power long pulsewidth quasi-CW laser diode arrays,” Proc. SPIE 5336-28 (26-27 Jan. 2004)

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Petros

    1. Mulugeta Petros, Jirong Yu, Bo Trieu, Yingxin Bai , Grady Koch ,Paul Petzar ,Upendra N. Singh, Jeffrey Beyon, “315mJ, 2µm Coherent Differential Absorption Lidar transmitter for atmospheric CO2 sensing” 25th International Laser Radar Conference (ILRC)  5-9 July 2010: St. Petersburg, Russia
    2. Petros, Mulugeta, Yu, Jirong, Trieu, Bo, Bai, Yingxin, Petzar, Paul, and Singh, Upendra N., “The Selection of Q-Switch for a 350 mJ Airborne 2-micron Wind Lidar,” SPIE Asia Pacific Remote Sensing 2008 Noumea, 17-21 Nov. 2008
    3. Petros, Mulugeta, Yu, Jirong, Trieu, Bo, Bai, Yingxin, Petzar, Paul, Singh, Upendra N., and Reithmaier, Karl, “2.5 MHz Line-Width High-energy, 2 Micrometer Coherent Wind Lidar Transmitter,” CLEO/QELS 07 – Conference on Lasers and Electro-Optics and Quantum Electronics and Laser Science Conference Baltimore, MD 6-11 May 2007
    4. M. Petros, J. Yu, T. Melak, B. Trieu, S. Chen, U. N. Singh, and Y. Bai, “High energy totally conductive cooled, diode pumped 2 micron laser,” 20th Advanced Solid-State Photonics (ASSP) Meeting (Feb. 6-9, 2005)
    5. Mulugeta Petros,  Jirong Yu, Tony Melak, Bo Trieu, Songsheng Chen, Upendra N. Singh, and Yingxin Bai , “Totally conductive cooled , diode pumped, 2µm laser transmitter” Proceedings of  SPIE 5653 Lidar Remote Sensing for Industry and Environmental Monitoring (Jan. 2005)
    6. M. Petros, J. Yu, T. Melak, B. Trieu, S. Chen, U. N. Singh, and Y. Bai, “Totally conductive cooled, diode pumped, 2 micron laser transmitter,” SPIE Fourth International Asia-Pacific Environmental Remote Sensing Symposium (8-12 Nov. 2004)
    7. Mulugeta Petros, Jirong Yu, Songsheng Chen, Upendra N. Singh, Brian M. Walsh, Yingxin Bai, Norman P. Barnes “Diode pumped 135 mJ Ho:Tm:LuLF Oscillator” Advanced Solid-state Photonics (2003)
    8. M. Petros, J. Yu, G.J. Koch, B.M. Walsh, S. Chen, Y. Bai, and N.P. Barnes, “Double Pulsed High Energy Ho:Tm:LuLF Laser,” CLEO Conference, Baltimore, MD (2003)
    9. Mulugeta Petros, Jirong Yu, Songsheng Chen, Upendra N. Singh, Brian M. Walsh, , Norman P. Barnes  “High energy diode pumped Ho: Tm: LuLiF laser for Lidar application”  SPIE’s Third International Asia-Pacific Symposium on Remote Sensing of the Atmosphere, Ocean, Environment, and Space (23-27 October 2002)
    10. M. Petros, J. Yu, U. N. Singh, J. C. Barnes, N.  P. Barnes, and  B. M. Walsh, “A 300 mJ Diode Pumped 1.9 µm Tm:YLF Laser”, SPIE 46th Annual International Symposium on Optical Science and Technology, Vol. 4484,  San Diego, CA (July 29 – Aug 3, 2001)
    11. M. Petros, J. Yu, U. N. Singh and N. P. Barnes, “High Energy Directly Pumped Ho:YLF Laser”, Advanced Solid State Laser Conference, Davos, Switzerland, Feb. 13-16, 2000, TOPS Vol. XXXIX, Advanced  Solid-State Lasers, Edited by Hagop Injeyan, Ursula Keller, and Christopher Marshall, 178-181 (2000)

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Pugh-Thomas

  1. D. Pugh-Thomas, B.M. Walsh, M.C. Gupta, “Spectroscopy of BeAl2O4:Cr3+ with Application to High Temperature Sensing,” Appl. Opt., 15, 2891-2897 (2010).
  2. D. Pugh-Thomas, B.M. Walsh, M.C. Gupta, “CdSe(ZnS) nanocomposite luminescent high temperature sensor,” Nanotechnology, 22 185503 (2011).
  3. Devin Pugh-Thomas, Mool Gupta, and Brian M. Walsh, “Quantum Dots for High Temperature Sensing”, Technical digest of the Conference on Lasers and Electro-Optics, Baltimore, Maryland, May 1-6, 2011, paper JWA58

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Prasad

  1. Prasad, Narasimha S., Armstrong, Darrell, J., Edwards, William C., and Singh, Upendra N., “Single-mode, All-Solid-State Nd:YAG Laser Pumped UV Converter,” 24th International Laser Radar Conference Boulder, CO 23-27 Jun. 2008
  2. Narasimha S. Prasad, Upendra N. Singh, and Floyd Hovis, “High energy, single-mode, all-solid-state and tunable UV laser transmitter,” CLEO-Europe 2007, Munich, Germany, June 19-21, 2007
  3. Narasimha S. Prasad, Upendra N. Singh, Floyd Hovis, Darrell J. Armstrong, “High energy, single-mode, all-solid-state and tunable UV laser transmitter,” SPIE Defense and Security Symposium, Orlando, Florida, April 16-21, 2006
  4. Narasimha S. Prasad, Richard E. Davis, and Upendra N. Singh, “Sensing of Lignens and Kerogens using laser induced fluorescence at deep UV wavelengths,” SPIE Annual Meeting, Proc. SPIE Vol. 5887, p. 166-172, Lidar Remote Sensing for Environmental Monitoring VI; Upendra N. Singh; Ed., 2005
  5. Narasimha S. Prasad and Upendra N. Singh, “High Energy Tunable UV Transmitter Development for Remote Sensing of Chemical and Biological Species,” 6th Joint Conference on Standoff Detection for Chemical and Biological Defense, Williamsburg, VA October 25-29, 2004

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Singh

    1. U. N. Singh, G. J. Koch, M. J. Kavaya, J. Yu, J. Y. Beyon, and B. B. Demoz, “Vertical and Horizontal Wind Profiling From a High Energy, Pulsed, 2-Micron, Coherent-Detection Doppler Lidar and Intercomparison With Other Sensors,” SPIE (April 25-29, 2011)
    2. Singh, Upendra N; Emmitt, David; Limaye, Sanjay; Levine, Joel S; Yu, Jirong; and Kavaya, Michael J, “Coherent Doppler Lidar for Wind Measurements on Venus,” European Geosciences Union General Assembly 2011, Vienna, Austria, (04/03/2011 – 04/08/2011)
    3. Upendra Singh,Yingxin Bai, and Jirong Yu, “Tm:Fiber Pumped Solid-State Ho:YLF 2-µm Coherent Laser Transmitter for Air and Space-based CO2,” Fiber Laser Applications(The Optical Society of America, Washington, DC, 2011), FWC4.
    4. Singh, Upendra N, Emmitt, David, Levine, Joel S, Engelund, Walter C,  Yu, Jirong, Koch, Grady J, and Kavaya, Michael J, “A Mars-Orbiting 2-Micron Lidar System To Monitor The Density, Winds And Dust Of The Atmosphere Of Mars ,” Fourth International Workshop on the Mars Atmosphere: Modeling and Observation, Paris, France (02/08/2011 – 02/11/2011)
    5. U. N. Singh, J. Yu, Y. Bai, S. Chen, M. J. Kavaya, G. J. Koch, G. Fabien, P. Flamant, K. Davis, R. T. Menzies, and S. P. Sandford, “High Repetition Rate Pulsed 2-micron Coherent/Direct DIAL/IPDA Transmitter for CO2 Measurements from Air and Spaceborne Platform,” 4th International Workshop on CO2 DIAL Remote Sensing, Oberpfaffenhofen, Germany (Nov 3-5, 2010)
    6. U. N. Singh, J. Yu, and M. J. Kavaya, “Advances in High Energy Solid-State 2-Micron Laser Transmitter Development for Ground and Airborne Wind and CO2 Measurements,” 2010 SPIE Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing, Toulouse, France (Sept 20-24, 2010)
    7. Singh, Upendra N, Koch, Grady, Kavaya, Michael J, J, Yu, Jirong, Beyon, Jeffrey Y, and Demoz, Belay, “Vertical and horizontal Wind Profiling from a High Energy, Pulsed, 2-Micron, ???,”  Maui, HI USA (Sept 13-17, 2010)
    8. Singh, Upendra N, Emmitt, David, Yu, Jirong, and Kavaya, Michael J  “Doppler Lidar for Wind Measurements on Venus,” 2010 VEXAG International Workshop, Madison, WI   (08/30/ – 09/02/2010)
    9. U. Singh, ???, “Coherent Doppler Aerosol Wind lidar Instrument and GRIP Mission,” Digest of the Working Group on Space-Based Lidar Winds, Bar Harbor, ME (Aug 24-26, 2010)
    10. Singh, Upendra N, Koch, Grady J, Yu, Jirong, Petros, Mulugeta, Beyon, Jeffrey Y, Kavaya, Michael J, Trieu, Bo C,  Chen, Songsheng, Bai, Yingxin, Petzar, Paul J, Modlin, Edward A, Barnes, Bruce W, and Demoz, Belay,  “Compact, High Energy 2-micron Coherent Doppler Wind Lidar Development for NASA’s Future 3-D Winds Measurement from Space,” 25th ILRC, St. Petersburg, Russia (July 5-9, 2010)
    11. Singh, Upendra N, Koch, Grady, Kavaya, Michael J, Yu, Jirong, Beyon, Jeffrey Y, and Demoz, Belay, “Wind Measurements from a High Energy, Pulsed, 2-Micron, Coherent-Detection Doppler Lidar and Intercomparison with other Sensors Deployed during Field Campaign,” European Geosciences Union General Assembly 2010, Vienna, Austria (2-7 May 2010 )
    12. Upendra N. Singh, Michael J. Kavaya, Robert M. Atlas, and George D. Emmitt, “Application of Doppler Wind Lidar Observations to improve scientific understanding and forecasting of extreme weather events,” Invited Paper, AGU Chapman Conference on Complexity and Extreme Events, National Geophysical Research Institute, Hyderabad, Andhra Pradesh. India (February 15 – 19, 2010)
    13. U. N. Singh, J. Yu, and M. J. Kavaya, “High Energy 2-micron Solid State Laser Development for NASA’s 3-D Winds Measurement from Space,” SPIE Photonics West 2010, San Francisco, CA United States (01/23 – 01/28/2010)
    14. Singh, Upendra N, Koch, Grady J, Kavaya, Michael  J, Yu, Jirong, Beyon, Jeffrey Y, and Demoz, Belay , Demetris, “Wind Profiling from a New Compact, Pulsed, 2-Micron, Coherent-Detection Doppler Lidar Transceiver during Wind Measurement Intercomparison,” 8th International Symposium on Tropospheric Profiling: Integration of Needs, Technologies and Applications, Delft, Netherlands (10/18 – 23/2009)
    15. U. N. Singh, J. Yu, M. J. Kavaya, and G. J. Koch, “Compact, 2 Micron High-Energy Laser Transmitter For Coherent Wind Lidar,”  2009 IEEE International Geoscience & Remote Sensing Symposium, Cape Town, South Africa (13-17 July 2009)
    16. U. N. Singh, “NASA’s Laser Risk Reduction Program for space-based remote sensing application,” Invited Paper, 54th Annual South Africa Institute of Physics Conference, Durban, South Africa (July 6-10, 2009)
    17. U. N. Singh, G. J. Koch, M. J. Kavaya, and J. Y. Beyon, “2-Micron Coherent Doppler Wind Lidar Measurement During Intercomparison,” SPIE Optics and Photonics 2009, San Diego, CA (2-7 Aug. 2009)
    18. U. N. Singh, Y. Bai, J. Yu, M. Petros, P. Petzar, and H. Lee, “High Repetition Rate Pulsed 2-Micron Laser Transmitter for Coherent CO2 Measurement,” Coherent Laser Radar Conference, Toulouse, France (22-25 June 2009)
    19. U. N. Singh, J. Yu, and M. J. Kavaya, “2-Micron Laser Transmitter Development for Coherent Doppler Wind and Carbon Dioxide Measurement,” 2nd Expert Group Meeting on Atmospheric CO2, Tokyo, Japan (12-14 Nov. 2008)
    20. U. N. Singh, M. J. Kavaya, and J. Yu, “Development of 2-Micron Coherent Lidar Transmitter for Global Wind Measurement,” SPIE Asia Pacific Remote Sensing 2008, New Caledonia, New Caledonia (17-21 Nov. 2008)
    21. U. N. Singh, M. J. Kavaya, J. Yu, and F. Amzajerdian, “World Record Energy 2-Micron Laser for Space-based Wind Measurements,” SPIE Newsroom (2008)
    22. U. N. Singh, J. Yu, M. J. Kavaya, and G. J. Koch, “High-Energy, 2-Micron Laser Transmitter for Coherent Wind Lidar,” International Conference on Space Optics 2008, Toulouse, France (14-17 Oct. 2008)
    23. U. N. Singh, M. J. Kavaya, and G. J. Koch, J. Yu, and S. Ismail, “Solid-State 2-Micron Laser Transmitter Advancement for Wind and Carbon Dioxide,” SPIE Europe Remote Sensing Symposium, Cardiff, United Kingdom, (15-18 Sept. 2008)
    24. Upendra N. Singh, Jirong Yu, Michael J. Kavaya and Grady J. Koch, “NARROW LINE-WIDTH, HIGH-ENERGY, 2μm LASER TRANSMITTER FOR COHERENT WIND LIDAR,” International Laser Radar Conference, Boulder, CO (23-27 June 2008)
    25. U. N. Singh, M. J. Kavaya, and J. Yu, “Advancement in 2-micron laser transmitter at NASA LaRC for Coherent Doppler Wind Lidar ,” Digest of the 28th Meeting of the Working Group on Space-Based Lidar Winds, Monterey, CA (5-8 Feb 2008)
    26. U. N. Singh, M. J. Kavaya, J. Yu, and S. Ismail, “Advanced 2-µm Solid-state Laser for Wind and CO2 Lidar Applications,” International Symposium on Aerosol-Chemistry-Climate Interactions, Ahmedabad, India (11/20/2007 – 11/22/2007)
    27. U. N. Singh, G. J. Koch, M. J. Kavaya, and S. Ismail, “2-Micron Pulsed Laser Technologies to Simultaneously Profile Wind and Carbon Dioxide,” 4th Workshop on Lidar Measurements in Latin America, Ilhabela, Brazil (17-23 June 2007)
    28. U. N. Singh, G. J. Koch, M. J. Kavaya, and S. Ismail, “A Proposal to Simultaneously Profile Wind and CO2 on Earth or Mars with 2-micron Pulsed Lidar Technologies,” 13th Coherent Laser Radar Conference, Kamakura, Japan  (16-20 October 2005)
    29. U. N. Singh and M. J. Kavaya, “Laser and lidar technologies for Earth and planetary remote sensing,” Proc. SPIE 5887, p. 1, Lidar Remote Sensing for Environmental Monitoring VI, San Diego, CA (31 July – 4 Aug. 2005)
    30. U. N. Singh and M. J. Kavaya, “Overview of Laser/Lidar Technologies for NASA’s Science and Exploration Mission’s Applications,” Digest of the 24th  Meeting of the Working Group on Space-Based Lidar Winds, Welches, OR  (28 June – 1 July 2005)
    31. U. N. Singh, S. Ismail, M. J. Kavaya, D. M. Winker, and F. Amzajerdian, “Space-Based Lidar,” Chapter 9 in “Laser Remote Sensing,” Takashi Fujii and Tetsuo Fukuchi, editors, CRC Press, Optical Science and Engineering Series, Vol. 97, ISBN 0824742567 (6/24/05)
    32. U. N. Singh and M. J. Kavaya, “NASA’s laser risk reduction program at Langley Research Center,” Proc. SPIE 5575, no written version in digest, Maspalomas, Gran Canaria, Canary Islands, Spain (15-16 Sept. 2004)
    33. U. N. Singh and M. J. Kavaya, “Overview and Accomplishments of NASA’s Laser Risk Reduction Program at NASA Langley Research Center,” Digest of the 22nd International Laser Radar Conference (ILRC), p. 49-52, Matera, Italy (July 12-16, 2004)
    34. U. N. Singh and W. S. Heaps, “Integrated NASA Lidar System Strategy for Space-based Remote Sensing,” International Laser Radar Conference (ILRC) (2002)

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Walsh

    1. B.M. Walsh, “Dual Walelength Lasers”, Laser Physics, 20, 622-634 (2010).
    2. B.M. Walsh, N.P. Barnes, “Nonstoichiometric laser materials; designer wavelengths in neodymium doped garnets, “ J. Lumin., 129, 1401-1406 (2009).
    3. B.M. Walsh,  “A Review of Tm and Ho Materials; Spectroscopy and Lasers,” Laser Physics, 19, 855-866 (2009).
    4. B.M. Walsh, N.P. Barnes, and U.N. Singh, “Engineered Laser Materials for Remote Sensing,” in Lidar Remote Sensing for Environmental Monitoring IX, edited by Upendra N. Singh, Kazuhiro, and Achuthan Jayaraman,Proceedings of SPIE, vol. 7153, 715308 (2008).
    5. B.M. Walsh, N.P. Barnes, Nonstoichiometric laser materials; designer wavelengths in neodymium doped garnets, “in 15th International Conference on Luminescence ’08 Technical Digest, TuA1-K (2008).
    6. B.M. Walsh, N.P. Barnes, R.J. DeYoung, “Lanthanide Glass Spectroscopy and Fiber Lasers”, inPhysics and Chemistry of Rare-Earth Ions Doped Glasses, N.S. Hussain and J.D.  Santos, eds. (Trans Tech Publishers, Switzerland, 2008), pp. 1-46.
    7. B.M. Walsh and N.P. Barnes, “Quantum Efficiency Measurements in Nd-doped Materials,” in Advanced Solid-State Photonics 2008 Technical Digest (The Optical Society of America, Washington, DC, 2008), WE22.
    8. B.M. Walsh and N.P. Barnes, “A Novel UV Laser for Lidar Applications,” in Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing III, edited by Upendra N. Singh, Gelsomina Pappalardo,Proceedings of SPIE, vol. 6750, 675004 (2007).
    9. B.M. Walsh, N.P. Barnes, D.J. Reichle, and S. Jiang, “Optical Properties of Tm3+ ions in alkali germanate glass,” J. Non-Cryst. Solids, 352, 5344-5352 (2006).
    10. B.M. Walsh, “Judd-Ofelt Theory: Principles and Practices”, in Advances in Spectroscopy for Lasers and Sensing, B. Di Bartolo and O. Forte, eds. (Springer, Netherlands, 2006), pp. 403-433.
    11. B. M. Walsh, G.W. Grew, and N.P. Barnes, “Energy levels and intensity parameters of Ho3+ ions in Y3Al5O12 and Lu3Al5O12,” J. Phys. Chem. Solids, 67, 1567-1582 (2006).
    12. B. M. Walsh, G.W. Grew, and N.P. Barnes, “Energy levels and intensity parameters of Ho3+ ions in GdLF4, YLiF4 and LuLiF4,” J. Phys. Condens. Matter, 17, 7642-7665 (2005).
    13. B.M. Walsh, N.P. Barnes, M. Petros, J. Yu and U.N. Singh, “Modeling of Pulsed Lasers for Remote Sensing,” in Lidar Remote Sensing for Industry and Environment Monitoring V, edited by Upendra Singh, Kohei Mizutani, Proceedings of SPIE, vol. 4893, (SPIE, Bellingham, WA 2005), pp 24-32.
    14. B. M. Walsh and N.P. Barnes, “Line Tunable Ultraviolet Laser,” in Advanced Solid State Photonics, vol. 98 of OSA Trends In Optics and Photonics Series (Optical Society of America, Washington, D.C., 2005), pp 110-116.
    15. B. M. Walsh, “Tm-doped fiber lasers,” International School of Atomic and Molecular Spectroscopy; Workshop on Advances in Luminescence Research, Erice, Italy (2004).
    16.  B.M. Walsh and N.P. Barnes, “Quantum Efficiency Measurements In Nd-Doped Materials,” Advanced Solid State Photonics Conference, Santa Fe NM (2004)
    17. B. M. Walsh, N.P. Barnes, M. Petros, J. Yu, and U.N. Singh, “Spectroscopy and modeling of solid state lanthanide lasers: Application to trivalent Tm3+ and Ho3+ in YliF4 and LuLiF4,” Journal of Applied Physics, 95, 3255-3271 (2004).
    18. B. M. Walsh and N.P. Barnes, “Comparison of Tm:ZBLAN and Tm:silica fiber lasers; Spectroscopy and tunable pulsed laser operation around 1.9 mm,” Applied Physics B, 78, 325-333 (2004).
    19. B. M. Walsh and N. P. Barnes, “Comparison of Tm-doped ZBLAN and silicate fiber lasers operating near 2.0 micrometers,” in Advanced Solid State Photonics, vol. 83 of OSA Trends In Optics and Photonics Series (Optical Society of America, Washington, D.C., 2003), pp 287-291.
    20.  B. M. Walsh, J. McMahon, W.C. Edwards, N.P. Barnes, R.W. Equall, and R.L. Hutcheson,” Spectroscopic characterization of Nd:Y2O3; Application towards a DIAL device for remote sensing of ozone,” Journal of the Optical Society of America B, 19, 2893-2903 (2002).
    21. B. M. Walsh, N.P. Barnes, J. Yu, and M. Petros, “A comparison of Tm:Ho:YLF and Tm:Ho:LuLF for 2.0 micrometer lasers; experiment and modeling,” in “, in Advanced Solid State Lasers, vol. 68 of OSA Trends In Optics and Photonics Series (Optical Society of America, Washington, D.C., 2002), pp 245-247.
    22. B. M. Walsh, K.E. Murray, N.P. Barnes, “ Cr:Er:Tm:Ho:yttrium aluminum garnet laser exhibiting dual wavelength lasing at 2.1 and 2.9 µm: Spectroscopy and laser performance,” Journal of Applied Physics, 91, 11-17 (2002).

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Williams-Bryd

  1. Julie A. Williams-Byrd, Larry B. Petway, William C. Edwards and Matthew C. Turner, “Room Temperature Laser Performance of Nd:Y2O3 at 914 nm”, Conference for Lasers and Electro-Optics (CLEO) , Baltimore, Maryland in June 2003.
  2. Julie Williams-Byrd, Larry Petway and William Edwards ,“High Conversion Sum Frequency Generation Using Various SFG Configurations”  Advanced Solid-state Photonics conference , San Antonia, Texas, February 2003.

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Yu

    1. Jirong Yu, Mulugeta Petros, Yingxin Bai, Songsheng Chen, Jason Lu, and Upendra N. Singh, “A Pulsed 2-micron Coherent Differential Absorption Lidar for Atmospheric CO2 Measurements,” Laser Applications to Chemical, Security and Environmental Analysis (The Optical Society of America, Washington, DC, 2011), LT5B.1
    2. Jirong Yu, Yingxin Bai, Paul Petzar, Mulugeta. Petros, Songsheng Chen, Bo Trieu, Grady Koch, Michael Kavaya, and Upendra Singh “A pulsed, high repetition rate 2-micron laser transmitter for coherent CO2 DIAL,” AGU, San Francisco, CA (Dec 09)
    3. Jirong Yu, Yingxin Bai, Bo C. Trieu, Mulugeta Petros, , Paul J. Petzar,  Upendra N. Singh, and Michael J Kavaya, “An injection seeded high-repetition pulsed 2-micron laser for remote sensing atmospheric CO2 concentration,” Proc. SPIE, Vol. _____, __ – __, San Diego, CA (2-6 Aug. 2009)
    4. Yu, Jirong, Bai, Yingxin, Trieu, Bo, Petros, M., Petzar, Paul, Lee, Hyung, and Singh, U., “Efficient Operation of Conductively Cooled Ho:Tm:LuLiF Laser Oscillator/Amplifier,” Advanced Solid State Photonics Nara, Japan (27-30 Jan. 2008)
    5. Yu, Jirong, Bai, Yingxin, Petros, M., Petzar, Paul, Trieu, Bo, Lee, Hyung, and Singh, U., ”Highly Efficient Q-switched Ho:YLF Laser Pumped by Tm:Fiber Laser,” CLEO/QELS 07 – Conference on Lasers and Electro-Optics and Quantum Electronics and Laser Science Conference Baltimore, MD 6-11 May 2007
    6. Jirong Yu, Bo C. Trieu, Mulugeta Petros, Yingxin Bai, Paul J. Petzar, Grady J. Koch, Upendra N. Singh, and Michael J Kavaya, “Advanced 2-µm solid-state laser for wind and CO2 lidar applications,” Proc. SPIE, Vol. 6409, paper 41, pp. 1C-1 to 1C-11, Lidar Remote Sensing for Environmental Monitoring VII, Asia-Pacific Remote Sensing, Panaji, Goa, India (Nov. 13-17, 2006)
    7. J. Yu, S. Chen, M. Petros, Y. Bai, P. Petzar, B. C. Trieu, U. N. Singh, and M. J. Kavaya, “Diode-Pumped One Joule per Q-Switched Pulse 2 mm Laser,” Invited Paper, Conference on Lasers and Electro-Optics (CLEO), Long Beach, CA (May 21-26, 2006)
    8. J. Yu, B. C. Trieu, E. A. Modlin, U. N. Singh, M. J. Kavaya, S. Chen, Y. Bai, P. J. Petzar, and M. Petros,  “1 J/pulse Q-switched 2-mm solid-state laser,” Optics Letters 31(4), 462-464 (2006)
    9. J. Yu, B. Trieu, E. A. Modlin, U. N. Singh, M. J. Kavaya, S. Chen, Y. Bai, P. Petzar, and M. Petros, “One-Joule-Per-Pulse 2-micron Solid State,” Invited Paper, 13th Coherent Laser Radar Conference, Kamakura, Japan  (16-20 October 2005)
    10. J. Yu, M. J. Kavaya, and U. N. Singh, “Advanced 2-micron solid state laser developments for remote sensing applications,” Proc. SPIE 5887, oral: no paper in digest, Lidar Remote Sensing for Environmental Monitoring VI, San Diego, CA (31 July – 4 Aug. 2005)
    11. J. Yu, U. Singh, and M. J. Kavaya, “Two Micron Laser Development for Space-Based Wind Measurement,” Digest of the 21st Meeting of the Working Group on Space-Based Lidar Winds, Sedona, AZ (27-29 Jan. 2004)
    12. J. Yu, Y. Bai, N.P. Barnes, H.R. Lee, M. Petros, S. Chen, B.C. Trieu, “Intra-Cavity Pumped PPLN OPO With Double Ring Configuration,” Advanced Solid State Photonics Conference, Santa Fe NM (2004)
    13. J. Yu, H.R. Lee, Y. Bai, and N.P. Barnes, “Tunable 4-10 mm Infrared Radiation For Remote Sensing Applications,” 22nd International Laser Radar Conference, Matera, Italy (2004)
    14. J. Yu, M. Petros, S. Chen, U. N. Singh, and M. J. Kavaya, “High-energy 2-mm laser development, “12th Coherent Laser Radar Conference, Bar Harbor, ME (15-21 June 2003)
    15. J. Yu, H.R. Lee, N.P. Barnes, “Tunable Infrared Radiation For Remote Sensing Applications,” CLEO Conference, Baltimore, MD (2003)
    16. J. Yu, A. Braud, and M. Petros, “600-mJ, double-pulse 2-mm laser,” Opt. Lett. 28, 540-542 (2003)
    17. J.R. Yu, N.P. Barnes, K.E. Murray, “Parametric Generation Of Tunable Infrared Radiation For Remote Sensing Applications,” Remote Sensing Of The Atmosphere, Ocean, Environment, And Space Symposium, Hangzhou, China (2002)

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Miscellaneous

  1. Russell De Young , Norman P. Barnes , Donald Reichle , and Brian M. Walsh, “Compact Eye-Safe Water Vapor Differential Absorption Lidar for Earth and Mars Atmospheric Water Profiling,” 24th International Laser Radar Conference, Boulder, CO, 23-27 June 2008, paper S10P-11.
  2. Ismail, Syed, Koch, Grady J., Refaat, Tamer F., Abedin, M. N., Yu, Jirong, and Singh, Upendra N., “Development and Evaluation of a High Sensitivity DIAL System for Profiling Atmospheric CO2,” International Conference on Space Optics 2008 Toulouse (14-17 Oct. 2008)
  3. T. Thevar , N.P. Barnes, “Diode Pumped, Continuous Wave Tm:YAlO3 laser,” Appl. Opt. 45, 3352-3355 (2006)
  4. H. Hara, B.M. Walsh, and N.P. barnes, “Tunability of a 946-nm Nd:YAG microchip laser versus output mirror reflectivity and crystal length,” Opt. Eng., 43, 3026-3028 (2005).
  5. B. Trieu, J. Yu, M. Petros, L. Ramos-Isquierdo, G. Byron, P. Sohn, S. Chen, Y. Bai, M. J. Kavaya, and U. N. Singh, “Design of a totally conductively cooled, diode pumped, 2µm laser amplifier,” Proc. SPIE 5887, p. 126, Lidar Remote Sensing for Environmental Monitoring VI, San Diego, CA (31 July – 4 Aug. 2005)
  6. D. Emmitt, G. Koch, M. J. Kavaya, and U.N. Singh, “Mars Related Opportunities for DWL Applications,” Digest of the 23rd Meeting of the Working Group on Space-Based Lidar Winds, Sedona, AZ (1-3 Feb. 2005)
  7. G.D. Emmitt, G.J. Koch, and S. Wood, “Comparison of GWOLF and VALIDAR Doppler Lidar Measurements”, 85th American Meteorological Society Annual Meeting, San Diego, CA, January 2005
  8. S. Ismail, G. J. Koch, U. N. Singh, and K. J. Davis, “Development of a Ground-Based 2-Micron DIAL System for Atmospheric Boundary Layer and Climate Studies,” 85th American Meteorological Society (AMS) Annual Meeting, Second Symposium on Lidar Atmospheric Applications (9-13 Jan. 2005)
  9. L.J. Richardson, C.E. Bonner, J. Lewis, G.B. Loutts, W.J. Rodriguez, and B.M. Walsh, “Temperture Dependence on the cross-relaxation rates in Tm3+ doped strontium fluorapatite,” J. Lumin., 109, 129-133 (2004)
  10. V. Sudesh, K. Asai, U.N. Singh, B.M. Walsh, N.P. Barnes, “Room-temperature continuous-wave diode-pumped Tm:Ho:LuLF laser at 2.1 mm,” in Advanced Solid State Photonics, vol. 94 of OSA Trends In Optics and Photonics Series (Optical Society of America, Washington, D.C., 2004), pp 339-343.
  11. M.C. Turner, L.B. Petway, J.A. Williams-Byrd, N.P. Barnes, “Double pumped OPO generates signal that matches the pump temporal characteristics.”, Conference for Lasers and Electro-Optics (CLEO) , San Francisco, CA (May 2004)
  12. S. Ismail, G. J. Koch, B. W. Barnes, N. Abedin, T. F. Refaat, J. Yu, S. A. Vay, S. A. Kooi, E. V. Browell, and U. N. Singh, “Technology Developments for Tropospheric Profiling of CO2 and Ground-Based Measurements,” International Laser Radar Conference (ILRC) (2004)
  13. X.  Chen, B. Di Bartolo, N.P. Barnes, and B.M. Walsh, “Thermal Tuning And Broadening Of The Spectral Lines Of Trivalent Neodymium In Laser Crystals,” Phys. Stat. Sol. 241 1957-1976 (2004)
  14. H.Hara, B.M. Walsh, N.P. Barnes, “Tunability of a 946-nm Nd:YAG microchip laser by use of a double-cavity configuration,” Applied Optics, 15, 3171-3173 (2004).
  15. F. Peri, Jr., W. S. Heaps, and U. N. Singh, “Laser risk reduction technology program for NASA’s Earth Science Enterprise,” Proc. SPIE 4893, 166-175 (2003)
  16. S. Ismail, U. N. Singh, E. V. Browell, M. J. Kavaya, F. Peri, Jr., N. P. Barnes, J. Yu, W. C. Edwards, G. J. Koch, and N. Abedin, “DIAL technology developments for space-based O3, H2O, CO2, and cloud measurements,” Proc. SPIE 5154, Lidar Remote Sensing for Environmental Monitoring IV, San Diego (3-8 Aug. 2003)
  17. W.A. Clarkson, N.P. Barnes, P.W. Turner, J. Nilsson, and D.C. Hanna, “High-Power Cladding-Pumped Tm-Doped Silica Fiber Laser With Wavelength Tuning From 1860 To 2090 nm,” Opt. Lett. 27, 1989-1991, (2002)
  18. C.E. Bonner, Jr., P.M. Mwangi, S.J. Creekmore, L.J. Richardson, S. Stefanos, G.B. Loutts and B.M. Walsh, “A spectroscopic and Judd-Ofelt analysis of the relaxation dynamics of Tm3+ in the fluorapatites, FAP, S-FAP, and B-FAP, Optical Materials, 20, 1-12 (2002).
  19. Yu.V. Orlovskii, T.T. Basiev, V.V. Osiko, N.P. Barnes, and S.B. Mirov, “Multiphonon Relaxation Of Mid IR Transitions Of Rare Earth Ions In Laser Crystals,” CLEO Conference, Long Beach, CA (2002)
  20. S. Ismaiel, E.V. Browell, N.P. Barnes, B.M. Walsh, “Lidar water vapor profile measurements from air and space using tunable 940-nm lasers,” in SPIE proceedings volume 4035, Aerosense, Orlando, FL, April 24-28, 2000.

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