Company

Beyond Photonics is a private photonics design and advanced development company located in Boulder, on the Front Range of Colorado, a hotbed nation-wide of entrepreneurial and advanced photonics research and development activity.  Located within minutes of three highly-relevant national labs (NOAA, NIST, and NCAR) and a major research university (CU/Boulder, and JILA specifically), as well as NREL in Golden CO, we have access to numerous associates for consultation and synergy.  Lockheed Martin, Ball Aerospace, Google, and many other smaller specialized aerospace and high-tech companies are in the area as well.  

Beyond Photonics, a privately-owned photonics design and advanced development company, was formed in 2011.  Our mission is to provide commercial and government customers with innovative and cost-effective solutions to difficult laser-based remote sensing challenges, from concept to demonstrated product prototypes.  We strive to provide quality direction and innovation to a broad field of commercial and government customers and collaborate with numerous other specialists globally as required, to provide the best and most innovative technical solutions possible to hard new problems in photonics.

The Beyond Photonics team has extensive experience in the optical, laser, and laser-based remote sensing fields, having worked in photonics R&D and product development environments running the gamut from start-ups to major aerospace companies. Primary areas of expertise and interest focus on the analysis, design, and development of laser-based remote sensing systems, solid-state lasers, ultra-stable lasers, and other advanced electro-optical systems.

Our Leadership Team

Beyond Photonics principles have extensive experience in the optical, laser, and laser-based remote sensing fields, having worked in photonics R&D and product development environments running the gamut from start-ups to major aerospace companies.

Sammy Henderson, PhD

Chief Scientist, President

Dr. Henderson has significant technical expertise and over 30 years of experience in the development of laser-based remote sensing systems. He led the development of many of the first solid-state-laser-based coherent lidar systems in the late 1980’s and early 1990’s for long-range military and civil applications. This work included demonstrating some of the earliest solid-state lasers having the coherence and power necessary for coherent lidar measurement applications at significant range. He also has developed many direct detection lidar systems. Primary experience is at short-wave infrared (1-2.1 um) wavelengths with additional experience at mid-wave IR and UV wavelengths. He demonstrated the efficacy of coherent lidar technology for accurately measuring wind conditions at long range in many measurement campaigns from both ground and airborne platforms. He also demonstrated that solid-state coherent lidar systems are effective when applied to long-range target detection, precision target tracking, and target ID. In the mid 1990’s he demonstrated wide-bandwidth coherent lidar waveforms that allow simultaneous high precision measurement of range and velocity. Range-resolved vibration measurements were demonstrated at long range. Several of his innovations are in use in commercial and military applications. He has authored or co-authored over 100 technical papers in the field of laser technology and laser based remote sensing as well as an extensive book chapter on wind measurement lidar. He holds five patents covering laser and lidar technologies.

Dr. Henderson has significant business and technical leadership experience. He was a principal founding member at Coherent Technologies charged with the responsibility for R&D activities leading to business growth. CTI grew from three people in 1986 to 185 people and $35M in revenue in 2005. The accomplished technical team and intellectual property portfolio he managed was widely recognized as best-in-class and both were key factors leading to the acquisition of CTI by Lockheed Martin in 2005. Following the acquisition, Dr. Henderson served as Vice President of Technology and Strategy at Lockheed Martin for over 5 years. He was responsible for strategic leadership and technical direction in the field of laser-based remote sensing. This included: leading the internal investment strategy and technical direction, ensuring intellectual property protection, overarching management of internal investments and key customer-funded programs, and leading selected strategic teaming and merger and acquisition activities. In early 2011, Dr. Henderson left Lockheed Martin and founded Beyond Photonics aimed at providing commercial and government customers with innovative and cost-effective solutions to difficult laser-based remote sensing challenges, from concept to demonstrated product prototypes.

Dr. Henderson received his BS degree (summa cum laude) from Henderson State University in 1979 and his PhD in Physics from Texas A&M University in 1986. He is an active member of the American Physical Society (APS), the Optical Society of America (OSA), and the International Society for Optical Engineering (SPIE). He has served on program committees and as the chairman/co-chairman for several international remote sensing conferences, as a reviewer for OSA, IEEE, and SPIE technical journals, and as a member of the Industrial Advisory Board for the Optical Science and Engineering Program at the University of Colorado. He has been a long-term participant in the Military Sensing Symposia for Active EO Systems (classified conference) and has served on the program committee since 2004. In 2012 he was selected as a MSS Fellow recognizing his body of technical work and its contribution to military sensing.

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Charley Hale

Principal Research Engineer, Vice President

After 24 years at Coherent Technologies and Lockheed Martin Coherent Technologies (LMCT) in Louisville, Colorado, and over 30 years in the photonics industry, in late 2011 Charley Hale established Pathfinder Research LLC which merged with Beyond Photonics LLC in October 2012 to further enhance the combined company’s capabilities and prospects for growth.

Mr. Hale was an early addition to the professional staff of the successful Boulder start-up Coherent Technologies, Inc. (CTI) in 1987, where he headed up CTI’s pioneering efforts in the design and development of the first highly-stable cw single-frequency Holmium and Thulium IR diode-pumped solid state lasers to reach the commercial marketplace, and participated in the first eye-safe solid-state coherent lidar system ever demonstrated. He is the second author on the seminal CTI patent awarded for this lidar technology. CTI was acquired by Lockheed Martin Space Systems in 2005, further extending CT’s reach into emerging active remote sensing markets and programs. Mr. Hale wrapped up his career at LMCT as a Principal Research Engineer, focused on advanced remote vibration sensing technology and development of next-generation wind-sensing lidar systems for wind energy management and airport weather monitoring applications.

Among many innovations over those years, his early efforts supported the development of what ultimately culminated in LMCT’s world-class WindTracer long-range coherent lidar wind sensor. Hale more recently led efforts at LMCT to prepare this complex instrument for larger-scale production to address the rapidly-emerging wind energy management market, as well as 24/7 airport wind hazard monitoring, meteorology research, and other applications. He was a key contributor to many other single-frequency solid-state laser and advanced (imaging) coherent LIDAR technology firsts, and he wrote and led multiple Small Business Innovation Research (SBIR) and other research proposal submissions and wins over the years. Prior to CTI/LMCT, Hale was employed at Spectron Development Labs (later Spectron-Titan Systems) and Lawrence Livermore National Laboratory, where he worked on a wide array of high technologies, including laser remote sensing, pulsed holography, pulsed laser Schlieren flow imaging, compact in-situ laser doppler velocimetry instruments for extreme (explosive/hyper-sonic) environments, innovative new injection-seeded solid-state lasers, and fusion laser target diagnostics systems utilizing unique high peak power fiber optic techniques.

Mr. Hale received his BS in Physics at the University of Arkansas in 1980. He was a primary technical liaison for CTI/LMCT with the Colorado Photonics Industry Association and CU/JILA researchers, and is a long-running member of the industry advisory committee associated with the U. of Arkansas Physics department’s Micro-Electronics/Photonics interdisciplinary graduate education program. He is a member of OSA and IEEE.

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Experience & Expertise

With over 15 patents and 140 journal publications and technical conference papers and counting, the Beyond Photonics team are leaders in their field of solid-state lasers and laser-based remote sensing.  Team members have past experience as consultants, small high-tech business, large aerospace companies, and national laboratories. See the capabilities page for a summary of our capabilities with respect to laser and lidar system development.   The patent and publication information provided below, much of it accomplished while working at previous organizations prior to the formation of Beyond Photonics, illustrates the competence of our team in analysis, modeling, development, and demonstration of advanced lasers and lidar systems for a variety of applications.

Book Chapter

  1. S.W. Henderson, P. Gatt, D. Rees, and R.M. Huffaker, Wind Lidar, book chapter in Laser Remote Sensing, Eds. Fujii and Fukuchi,  CRC Press, Taylor and Francis Group, Boca Raton, FL, p 469-722, (2005)

An extensive (253 pages) book chapter on the history, theory, system designs, measurements, and future outlook of wind measurement laser radar. 

Sample Referred Journal Publications

  1. S. Serati, C.L. Hoy, L. Hosting, K. Kluttz, J. Stockley, and C.P. Hale, “Large-aperture, wide-angle nonmechanical beam steering using polarization gratings”, Opt. Eng. 56(3), 031211 (Oct 27, 2016).
  2. B.T. Lottman, R.G. Frehlich, S.M. Hannon, and S.W. Henderson, “Evaluation of vertical winds near and inside a cloud deck using coherent Doppler lidar,” Journal of Atmospheric and Oceanic Technology, 18, 1377-1386 (2001)
  3. R. G. Frehlich, S.M. Hannon, and S.W. Henderson, “Coherent Doppler lidar measurements of winds in the weak signal regime,” Appl. Opt. 36, 3491 (1997)
  4. S.W. Henderson and K. Ota, “Recent Improvements in Eyesafe, Solid-State and Coherent Laser Radar Technology,” Review of Laser Engineering (Japan) 25, 19, (1997)
  5. S.W. Henderson, P.J.M. Suni, C.P. Hale, S.M. Hannon, J.R. Magee, D.L. Bruns, and E.H. Yuen, “Coherent Laser Radar at 2 μm Using Solid-State Lasers,” IEEE Transactions on Geoscience and Remote Sensing 31, 4, (1993)  also in SPIE Milestone Series 133, Selected Papers on Laser Radar, Gary Kamerman Ed. (1997)
  6. J.G. Hawley, R. Targ, S.W. Henderson, C.P. Hale, M.J. Kavaya, and D. Moerder, “Coherent Launch-Site Atmospheric Wind Sounder (CLAWS): Theory and Experiment,” Appl. Opt. 32, 4557 (1993);  also in SPIE Milestone Series 141, Selected Papers on Laser Applications in Remote Sensing, W.B. Grant, et.al. Eds. (1997)
  7. S.W. Henderson, C.P. Hale, J.R. Magee, M.J. Kavaya, and A.V. Huffaker, “Eyesafe Coherent Laser Radar System at 2.1 μm Using Tm,Ho:YAG Lasers,” Opt. Lett. 16, 773 (1991);  also in SPIE Milestone Series 141, Selected Papers on Laser Applications in Remote Sensing, W.B. Grant, et.al. Eds. (1997)
  8. P. B. Sellin, G. A. Wilson, K. K. Meduri and T. W. Mossberg, “Observation of Inversionless Gain and Field-Assisted Lasing in a Nearly Ideal Three-Level Cascade-Type Atomic System”, Phys. Rev. A 54, p. 2404 (1996).
  9. H. Lin, T. Wang, G. A. Wilson and T. W. Mossberg, “Heterodyne Detection of Swept-Carrier Frequency-Selective Optical Memory Signals”, Opt. Lett. 20, 928 (1995).
  10. G. A. Wilson, K. K. Meduri, P. B. Sellin and T. W. Mossberg, “Inversionless Gain in Driven Three-Level Atoms: Enhancement Through Control of Excitation-Field Bandwidth”, Phys. Rev. A 50, 3394 (1994).
  11. P.J. Suni and S.W. Henderson, “A 1 mJ/pulse Tm:YAG Laser Pumped by a 3W Diode Laser,” Opt. Lett. 16, 817 (1991)
  12. G. A. Wilson, R. K. DeFreez and H. G. Winful, “Modulation of Phased-Array Semiconductor Lasers at K-Band Frequencies”, Special Issue on Semiconductor Lasers, J. Quantum Electron. 27, pp. 1696-1704 (1991).
  13. R. K. DeFreez, H. Ximen, D. J. Bossert, J. M. Hunt, G. A. Wilson, R. A. Elliott, J. Orloff, G. A. Evans, N. W. Carlson, M. Lurie, J. M. Hammer, D. P. Bour, S. L. Palfrey and R. Amantea, “Spectral Locking in an Extended Area Two-Dimensional Coherent Grating Surface Emitting Laser Array Fabricated Using Focused Ion Beam Micromachining”, Photonics Technol. Lett. 2, pp. 6-8 (1990).
  14. S.W. Henderson and C.P. Hale, “Tunable Single-Longitudinal-Mode Diode Laser-Pumped Tm,Ho:YAG Laser,” Appl. Opt. 29, 1716 (1990)
  15. M.J. Kavaya, S.W. Henderson, J.R. Magee, C.P. Hale, and R.M. Huffaker, “Remote Wind Profiling with a Solid-State Coherent Lidar System,” Opt. Letter. 14, 776 (1989).
  16. M.J. Kavaya, S.W. Henderson, E.C. Russell, R.M. Huffaker, and R.G. Frehlich, “Monte Carlo Computer Simulations of Ground-Based and Space-Based Coherent DIAL Water Vapor Profiling,” Appl. Opt 28, 840 (1989).
  17. S.W. Henderson, E.H. Yuen and E.S. Fry, “A Fast Resonance-Detection Technique for Single-Frequency Operation of Injection-Seeded Nd:YAG Lasers,” Opt. Lett. 11, 715 (1986).
  18. E.S. Fry and S.W. Henderson, “Suppression of Spatial Hole Burning in Polarization Coupled Resonators,” Appl. Opt. 25, 3017 (1986).
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Sample Invited Conference Presentations / Papers

  1. S.W. Henderson and D. Jacob, “Improved Analytic Equation for Estimating the Performance of Truncated Gaussian-Beam Coherent Lidar Systems,” paper W8, 18th CLRC, Boulder, CO (2016), paper available at clrccires.colorado.edu
  2. C.P. Hale and S.W. Henderson, “Fast Widely-Tunable Single Frequency 2-micron Laser” paper W5, 18th CLRC, Boulder, CO (2016), paper available at clrccires.colorado.edu
  3. S.W. Henderson, “Review of Fundamental Characteristics of Coherent and Direct Detection Doppler Receivers and Implications to Wind Lidar System Design,” invited paper, in proceeding of the 17th Coherent Laser Radar Conference, Barcelona, Spain (2013)  (see: http://www.tsc.upc.edu/clrc  download proceedings clrc2013_submission_40.pdf)
  4. S.W. Henderson, S. Hannon, C. Garvin, B. Stoneman, and J. Buck “Advanced Coherent Laser Radar Systems,” invited paper, Solid State and Diode Laser Technology Review, Los Angeles, CA (June 26-28, 2007)
  5. S.W. Henderson and P. Gatt, “Fundamental Comparison of Direct and Coherent Lidar System Performance,” invited paper, Coherent Optical Technologies and Applications Conference, Whistler, British Columbia, Canada (June 28-30, 2006)
  6. P. Gatt and S.W. Henderson, “Polypulse Coherent Lidar Waveforms for Coherent Lidar Measurements,” invited paper, Coherent Optical Technologies and Applications Conference, Whistler, British Columbia, Canada (June 28-30, 2006)
  7. S.W. Henderson, S.M. Hannon, C. Garvin, B. Stoneman, and J. Buck, “Advanced Coherent Laser Radar Systems,” invited paper, Conference on Lasers and Electro-Optics, Long Beach, CA, (May 21-26, 2006)
  8. R.C. Stoneman, R. Hatmann, A.I.R. Malm, S. Vetorino, P. Gatt, and S.W. Henderson, “Coherent Laser Radar Systems Using Eyesafe Er:YAG Laser Transmitters,” invited paper in proceedings of the 13th Coherent Laser Radar Conference, Kamakura, Japan, p. 54-57 (2005)
  9. S.M. Hannon, J.V. Pelk, and S.W. Henderson, “Recent Wind Measurements Using WindTracerÆ,” invited paper in proceedings of the 13th Coherent Laser Radar Conference, Kamakura, Japan, p. 84-87 (2005)
  10. S.W. Henderson and P. Gatt, “Coherent Laser Radar:” invited tutorial, MSS Active Systems, Boulder, CO,  see MSS web site for Tutorial Presentation, August 25-29 (2003)
  11. M.W. Phillips, D. Schnal, C. Colson, C.P. Hale, D. D’Epagnier, M. Gibbens, and S.W. Henderson, “SPARCLE Coherent Lidar Transceiver,” invited paper, Proc. of the Tenth Biennial Coherent Laser Radar Technology and Applications Conference, Mount Hood, Oregon, 98 (June 28-July 2, 1999)
  12. S.W. Henderson, S.M. Hannon, and P.J.M. Suni, “Recent Developments in Solid-State 2-μm Coherent Lidar,” invited paper 26D1, Proc. Of the 17th International Laser Radar Conference, Sendai, Japan, 204 (July 25-29, 1994)
  13. S.W. Henderson, S.M. Hannon, and J.R. Magee, “Wind Profiling and Aerosol Backscatter Measurements Using a 2 μm Coherent Laser Radar,” invited paper, Proc. of the Coherent Laser Radar Conference, Paris, France, 169 (July 19-23, 1993)
  14. S. W. Henderson, P.J.M. Suni, and C.P. Hale, “Diode-pumped 2-μm sources for laser radar” invited paper CMD3, CLEO Tech. Digest, p. 20, Anaheim, CA (May 10-15, 1992).
  15. S.W. Henderson, J.R. Magee, and C.P. Hale, “Injection Seeded Operation of a Q-Switched Cr,Tm,Ho:YAG Laser,” invited paper, Proc. of Meeting on Advanced Solid-State Lasers 6, Salt Lake City, Utah, 127 (March 5-7, 1990)
  16. S.W. Henderson, C.P. Hale, J.R. Magee, M.J. Kavaya, A.V. Huffaker, and R.M. Huffaker, “Coherent Solid-State 1.06 μm and 2.1 μm Lidar Systems for Wind Velocity Measurements,” invited paper E04.2, IEEE/LEOS annual meeting, Boston, MA (Nov. 4-9, 1990).
  17. P.J. Suni and S.W. Henderson, “Diode Pumped 2 μm Lasers for the mJ/Pulse Regime and Beyond,” invited paper SSL1-ThL1, IEEE/LEOS annual meeting, Boston, MA (Nov. 4-9, 1990).
  18. S.W. Henderson, M.J. Kavaya, and R.M. Huffaker, “Wind Velocity Measurement Performance of a Nd:YAG Coherent Lidar System,” invited paper THT4, CLEO Tech. Digest, p. 364, Baltimore, MD (April 24-28, 1989).
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Sample Patents

  1. S.W. Henderson and P.J. Suni, “Efficient Lidar with Flexible Target Interrogation Pattern,” U.S. Patent No. 7,532,311 (May 12, 2009).  Assigned to Lockheed Martin Coherent Technologies.
  2. R.C. Stoneman and S.W. Henderson, “Eyesafe Q-Switched Er-doped Solid-State Laser,” U.S. Patent No. 6,813,302 (December 12, 2003).  Assigned to Coherent Technologies.
  3. J.A.L Thomson, S. Hannon, and S.W. Henderson, “Doublet Pulse Coherent Laser Radar for Precision Range and Velocity Measurements,” U.S. Patent No. 5,815,250 (September 29, 1998) Assigned to Coherent Technologies.
  4. P.J. Suni and S.W. Henderson, “Device for Injection Seeding, Frequency Shifting, and Q-Switching a Laser Source,” U.S. Patent No. 5,521,930 (May 28, 1996).  Assigned to Coherent YTechnologies
  5. S.W. Henderson, C.P. Hale, R.M. Huffaker, J.R. Magee, M.J. Kavaya, and P.J. Suni, “Eyesafe Coherent Laser Radar for Velocity and Position Measurements,” U.S. Patent No. 5,237,331 (August 17, 1993).  Assigned to Coherent Technologies.
  6. B. K. Phillips, G. A. Wilson, “System for Biometric Identity Confirmation”, U. S. Patent 9,575,470, granted February 21, 2017, assigned to Integrated Monitoring Systems, LLC, Lakewood, CO.
  7. B. R. Warrick, G. Wilson, R. DeFreez, M. M. Carrabba, “Integrated Assembly for Delivery of Air Stream for Optical Analysis”, U. S. Patent 7,659,523, granted February 9, 2010, assigned to Hach Ultra Analytics, Inc., Grants Pass, OR.
  8. G. Wilson, J. Brady, “Methods and Systems for Signal Processing in Particle Detection Systems”, U. S. Patent 7,242,009, granted July 10, 2007, assigned to Hach Ultra Analytics, Inc., Grants Pass, OR.
  9. W. Rapoport, S. Vetorino, G. Wilson, “Optical Bench for Diode-Pumped Solid-State Lasers In Field Applications”, U. S. Patent 7,068,700, granted June 27, 2006, assigned to Honeywell International, Inc., Morristown, NJ.
  10. Ken Brown, David Crouch, and P. Kratovil, “High-power, shaped-beam, ultra-wideband biconical antenna”. U.S. Patent # 5,923,299, granted July 13, 1999, assigned to Raytheon Company
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Other Sample Publications and Conference Papers

  1. S.W. Henderson and C.P. Hale, “Fast Widely-Tunable Single-Frequency 2-micron Laser for Remote Sensing Applications”  SPIE Vol 10406, paper 11 (2017)
  2. R.C. Stoneman, R. Hartman, E.A. Schneider, C.G. Garvin, and S.W. Henderson, “Eyesafe diffraction-limited single frequency 1-ns pulsewidth Er:YAG transmitter,” Proc. SPIE 6552 (2007)
  3. B. K. Dable, G. A. Wilson, J. Brady and M. M. Carrabba, “Recent testing and performance improvements of a fluorescence-based biological aerosol sensor”, SPIE Proc. 6554-35, presented at the 2007 SPIE Defense & Homeland Security Symposium, Orlando, FL, April 11-12, 2007.
  4. S. W Henderson and S. M. Hannon, “Advanced Coherent Lidar for Wind Measurements”, SPIE Conference, San Diego, CA, SPIE Vol. 5887, paper 17 (2005)
  5. P. Gatt, T. Nichols, M. Welliver, D. Jacob, D. Smith, and S.W. Henderson, “Laser Radar End-to-End Simulator,” proceedings of the 13th Coherent Laser Radar Conference, Kamakura, Japan, p. 75-78 (2005)
  6. P. Gatt, C. Garvin, C. Embry, M. Hinckley, S.W. Henderson, R. Stetner, B. Muse, and M. Dierking, ”Performance Characteristics of a 400 MS/s 10×10 Coherent Ladar Array Receiver,” MSS Active EO Conference, (2004)
  7. G. A. Wilson and R. K. DeFreez, “Multispectral-diode-laser-induced fluorescence biological particle sensor”, SPIE Proc. 5617-15, presented at the SPIE Optically Based Biological and Chemical Sensing for Defence conference, London, UK, October 25-28, 2004.
  8. G. A. Wilson and J. Brady, “Design considerations and signal processing algorithms for laser-induced fluorescence airborne pathogen sensors (Invited Paper)”, SPIE Proc. 5617-06, presented at the SPIE Optically Based Biological and Chemical Sensing for Defence conference, London, UK, October 25-28, 2004.
  9. N. Prasad, P.T. Kratovil, C. Bjork, N.J., N.J. Vallestero, “Angle Discrimination based Pointing and Tracking for Free Space Communication Links”, Proc SPIE 5550, presented at SPIE Annual Meeting, Denver, CO, August 2-6, 2004.
  10. G. A. Wilson and R. K. DeFreez, “Auto-fluorescence detection using UV diode laser simultaneous excitation of multiple wavelengths”, SPIE Proc. 5071-52, presented at SPIE AeroSense 2003, Orlando, FL, April 21-25, 2003.
  11. A.M. Joshi, X. Wang, C. Nowacki, J.W. Hobbs, C.P. Hale, and P. Gatt, “1.2- to 2.2-μm SWIR 7-GHz wide-bandwidth photoreceivers,” Paper 5086-40, SPIE AeroSense 2003, Orlando, Florida (21-25 April, 2003).
  12. I.T McKinnie, J. E. Koroshetz, W.S. Pelouch, D.D. Smith, J.R, Unterhahrer, S.W. Henderson, and M. Wright, “Self-imaging waveguide Nd:YAG laser with 58% slope efficiency,”  proceedings of the Conference on Lasers and Electro-Optics (2002)
  13. P. Gatt, S, Johnson, S. W. Henderson, and C. Hale, “Theoretical Analysis of the Impact of Local Oscillator Frequency Noise on a Laser Vibration Sensor,” in Laser Radar Technology and Applications VII, Gary W. Kamerman, Editor, Proceedings of SPIE Vol. 4723 (2002).
  14. N.S. Prasad, P Kratovil, J.R. Magee, “Image Transmission in mid-IR using a Solid-State Laser Pumped Optical Parametric Oscillator”, SPIE Proc. Vol 4635, 2002
  15. P. Gatt, S.W. Henderson, “Laser Radar Detection Statistics: A comparison of coherent and direct detection receivers,” in Laser Radar Technology and Applications VI, Gary W. Kamerman, Editor, Proceedings of SPIE Vol. 4377, (2001).
  16. S.W. Henderson, C. Garvin, P. Gatt, D.D. Smith, and J.A.L. Thomson, “Coherent Laser Radar for 4D Imaging,” paper, National Military Sensing Symposium, Gaithersburg, MD, (November 27-29, 2000)
  17. I.T. McKinnie, T.W. Monarski, G.T. Bennett, A. Oien, D.D. Smith, S.M. Hannon, and S.W. Henderson “Eyesafe coherent laser radar at 1.56-μm using solid-state Raman lasers,” Proceedings of the 11th Coherent Laser Radar Conference, 159, Malvern, Worcestershire, UK (July 1-6, 2001)
  18. S.W. Henderson, J.H. Marquardt, T.J. Carrig, P. Gatt, D.D. Smith, and C.P. Hale, “Tunable Single Frequency near IR lasers for DIAL Applications,” Proceedings of SPIE: Lidar Remote Sensing for Industry and Environmental Monitoring, SPIE 4153, paper 71, Sendai, Japan (October 9-12, 2000)
  19. S.W. Henderson, C.P. Hale, J.W. Hobbs, P. Gatt, and J.R. Magee, “Widely-Tunable 2-micron CW Local/Master Oscillator for Wind and DIAL Measurements,” Proceedings of SPIE: Lidar Remote Sensing for Industry and Environmental Monitoring, SPIE 4153, paper 13, Sendai, Japan (October 9-12, 2000)
  20. Mark Phillips, Sammy Henderson, Mark Poling, and Milton Huffaker, “Coherent Lidar Development for Doppler Wind Measurement from the International Space Station” Proceedings of SPIE: Lidar Remote Sensing for Industry and Environmental Monitoring, SPIE 4153, p. 376-384, Sendai, Japan (October 9-12, 2000)
  21. P. Gatt, S.W. Henderson, J.A. Thomson and D.L. Bruns “Micro-Doppler Lidar Signals and Noise Mechanisms: Theory and Experiment,” Proceedings of the SPIE: AeroSense, SPIE 4035, Orlando, Florida (April 2000).
  22. S.W. Henderson, E.Y. Yuen, and S.M. Hannon, “Autonomous Lidar Wind Field Sensor: Design and Performance,” SPIE Annual Meeting: Atmospheric Remote Sensing, SPIE 3757 (July 1999)
  23. S.W. Henderson, J.A.L. Thomson, S.M. Hannon, and P. Gatt, “Comparison of Pulsed and CW Lidar for Remote Vibration Measurement,” Proc. of the Tenth Biennial Coherent Laser Radar Technology and Applications Conference, Mount Hood, Oregon, 58 (June 28-July 2, 1999)
  24. P. Kratovil, “Multi-processor spectral analysis to detect very low SNR lidar signals,” DSP World Conference Proceedings, 1999.
  25. S.M. Hannon, J.A.L. Thomson, S.W. Henderson, P. Gatt, R. Stoneman, and D. Bruns, “Agile Multiple Pulse Coherent Lidar for Range and Micro-Doppler Measurement,” Proceedings of the Laser Radar Technology and Applications Conference, Orlando Florida, SPIE 3380, 259 (1998)
  26. S.W. Henderson, J.A.L. Thomson, S.M. Hannon, T.J. Carrig, P. Gatt, and D.L. Bruns, “Eyesafe Coherent Laser Radar for Precision Range and Micro-Doppler Measurements,” Proc. Of the Active IRIS Conference, (1997)
  27. G. A. Wilson, S.W. Henderson, C.P. Hale, and S.M Hannon, “Development and Testing of an Optical Air Turbulence Sensor,”  Proc. of the 9th Conference on Coherent Laser Radar, Linkoping, Sweden, 198 (June 23-27,1997);  also in Laser Focus World, September, 1997, page 55.
  28. S.M. Hannon, P. Gatt, and S.W. Henderson, “Continental U.S. Aerosol Backscatter at 2 μm: Distribution and Implications for Ground- and Space-Based Coherent Lidars,” Proc. of the 9th Conference on Coherent Laser Radar, Linkoping, Sweden, 176 (June 23-27,1997)
  29. S.W. Henderson, J.A.L. Thomson, S.M. Hannon, T.J. Carrig, P. Gatt, and D. Bruns, “Wide-Bandwidth Eyesafe Coherent laser Radar for High Resolution Hard Target and Wind Measurements,” Proc. of the 9th Conference on Coherent Laser Radar, Linkoping, Sweden, 160 (June 23-27,1997)
  30. G. A. Wilson, J. A. L. Thomson, S. M. Hannon and S. W. Henderson, P. Gatt and C. P. Hale, “Airborne optical air turbulence sensor for high-precision vector wind measurement: scanning strategies”, SPIE Proc. 2832 (1996)
  31. R.D. Richmond, P.D. Woodworth, R. Fetner, J.A. Overbeck, M. Salisbury, S.W. Henderson, S.M. Hannon, and S.R. Vetorino, “Eyesafe Solid State Ladar for Airborne Wind Measurements,” Paper TuA3 in Technical Digest of Coherent Laser Radar Conference, Keystone, CO, 254 (July 23-27, 1995)
  32. G. A. Wilson, S. W. Henderson and J. A. L. Thomson, “Two-Micron Coherent Laser Radar Imaging Vibration Sensor”, Paper A-5, presented at the 1996 IRIS Active Systems meeting, May 13, 1996.
  33. S.W. Henderson, J.A.L. Thomson, G.A. Wilson, S.R. Vetorino, S.M. Hannon, and C.P. Hale, “Measurement of Small Motions using a 2-μm Coherent Laser Radar,” paper ThA4 in Technical Digest of Coherent Laser Radar Conference, Keystone, CO, 254 (July 23-27, 1995)
  34. S.M. Hannon, J.A.L. Thomson, S.W. Henderson, and R.M. Huffaker, “Windshear, turbulence and wake vortex characterization using pulsed solid-state coherent lidar,” Proc. on Air Traffic Control Technologies Conference, Orlando FL, SPIE 2464, 94 (April 18-19, 1995)
  35. S.M. Hannon, J.A.L. Thomson, J.R. Magee, S.W. Henderson, and R.M. Huffaker, “Airport Surveillance Using a Pulsed Coherent Laser Radar,” Proc. of the 7th Coherent Laser Radar Conference, Paris, France, 174 (July 19-23, 1993)
  36. C.P. Hale, S.W. Henderson, and P.J.M. Suni, “ CW and Pulsed Diode-Pumped Tm,Ho:YLF Oscillators for Coherent Lidar Applications,” Proc. of the 7th Coherent Laser Radar Conference, Paris, France, 196 (July 19-23, 1993)
  37. C.P. Hale, S.W. Henderson, and P.J.M. Suni, “Single-Longitudinal-Mode and Q-Switched Diode-Pumped Tm,Ho:YLF Oscillators,” Proc. of Meeting on Advanced Solid-State Lasers, 15, New Orleans, Louisiana, 407 (February 1-4, 1993)
  38. M. Felisky, R. K. DeFreez, G. A. Wilson, G. A. Evans, N. W. Carlson, S. K. Liew, R. Amantea, J. H. Abeles, C. A. Wang, H. K. Choi, J. N. Walpole and H. G. Winful, “Dynamics of CW Grating-Surface-Emitting Laser Arrays, Conference on Lasers and Electro-Optics”, Paper CWE6, Baltimore, Maryland, May 12-17, 1991.
  39. R.D. Richmond, M.J. Kavaya, and S.W. Henderson, “Atmospheric Effects on 2.09 μm Laser Radar Performance,” paper TuB2, p. 107, Tech. Digest of the Sixth Conference on Coherent Laser Radar: Technology and Applications, Snowmass, CO (July 8-12, 1991).
  40. C.P. Hale, S.W. Henderson, J.R. Magee, and S.R. Vetorino, “Compact High Energy Nd:YAG Coherent Laser Radar Transceiver,” poster paper TuD5, p. 133, Tech. Digest of the Sixth Conference on Coherent Laser Radar:  Technology and Applications, Snowmass, CO (July 8-12, 1991).
  41. C.P. Hale and S.W. Henderson, “Performance of a Tunable Single Frequency Tm,Ho:YAG Laser,” paper CWF9, CLEO Tech. Digest, p. 256, Anaheim, CA (May 21-25, 1990).
  42. S.W. Henderson, R,M. Huffaker, M.J. Kavaya, C.P. Hale, J.R. Magee, and L.E. Myers, “Pulsed coherent solid-state 1.06-μm and 2.1-μm coherent laser radar systems for remote velocity measurement,” paper 1222-15, Proc. SPIE 1222, “Laser Radar V,” Los Angeles, CA (Jan. 18-19, 1990).
  43. R. K. DeFreez, N. Yu, D. J. Bossert, M. Felisky, G. A. Wilson, R. A. Elliott, H. G. Winful, G. A. Evans, N. W. Carlson, and R. Amantea, “Experimental Characterization of the Picosecond Spatio-Temporal Properties of Coherent Semiconductor Laser Arrays”, Nonlinear Dynamics in Optical Systems, Paper ThA1, Afton, Oklahoma, June 4-8, 1990.
  44. R. K. DeFreez, J. Puretz, R. A. Elliott, G. A. Crow, H. Ximen, D. J. Bossert, G. A. Wilson and J. Orloff, “Focused-Ion-Beam Micromachined Diode Laser Mirrors”, Proceedings of the Society of Photo-Optical Engineers 1043, pp. 25-35 (1989).
  45. S.W. Henderson, M.J. Kavaya, and R.M. Huffaker, “Coherent Lidar System for Wind Velocity and Aerosol Backscatter Measurements Using Nd:YAG Lasers,” paper TuL4, CLEO Tech. Digest, p. 78, Anaheim, CA (April 25-29, 1988).
  46. S.W. Henderson and E.S. Fry, “Injection Seeding of a Q-switched Nd:YAG Laser,” paper AB12, Texas A&M Meeting of the American Physical Society (Nov. 7-9, 1985).
  47. S.W. Henderson and E.S. Fry, “Stabilized Single-Longitudinal-Mode Nd:YAG Laser,” paper BD9, Annual Spring Meeting of the Texas section of the American Physical Society (March 8-9, 1985), Bull. Amer. Phys. Soc. 30, 6 (1985).
  48. C.P. Hale, H. Medecki, and P.H.Y. Lee, “Photoemissive Materials for 0.35 µm Laser Fiducials in X-ray Streak Cameras,” (UCRL-90089), paper Md4-1, Digest of the Topical Meeting on Laser Techniques in the Extreme UV, AIP Conference Proceedings No. 119, ed. S.E. Harris and T.B. Lucatorto (AIP, New York NY, 1984).
  49. C. Wang, H. Medecki, C. Hale, G. Leipelt, S. Thomas, and J. Wiedwald, “Gamma-Ray Streak Camera,”, LLNL Laser Program Annual Report 1983 (UCRL-50021-83).
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Additional

Over 70 additional presentations/patents/papers by the Beyond Photonics team members not listed in categories above available on request.

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