High Energy Lasers (HEL)

Researchers at PSI are involved in the development of several High Energy Laser (HEL) sources, including Chemical Oxygen Iodine Lasers (COIL), Electric Oxygen Iodine Lasers (EOIL), micro-COIL, and Diode Pumped Alkali Lasers (DPAL). These lasers produce near to mid-IR output and can be operated as high power laser systems for directed energy applications. PSI’s research encompasses a wide variety of disciplines including chemical kinetics, spectroscopy, atomic and molecular interactions, and fluid flow dynamics. In addition PSI is developing advanced gas phase meta-stable energy sources and is developing ultra-sensitive diagnostics for understanding the performance of HEL devices. Our tunable diode laser absorption and gain spectroscopy laser diagnostics are used world-wide and include the development of imaging TDLAS systems.

PSI MIDJet EOIL reactor: Supersonic microwave discharge flow reactor and discharge chamber

Library:

1. Steven J. Davis, Seonkyung Lee, David B. Oakes, Julie Haney, John C. Magill, Dwane A. Paulsen, Paul Cataldi, Krisin L. Galbally-Kinney, Danthu Vu, Jan Polex, "EOIL Power Scaling in a 1-5 kW Supersonic Discharge-Flow Reactor ," presented at SPIE Photonics West LASE 2008 (San Jose, CA), (19-24 January 2008).

2.      Wilson T. Rawlins, Seonkyung Lee, Steven J. Davis, "Production of metastable singlet oxygen in the reaction of nitric oxide with active oxygen ," presented at SPIE Photonics West (San Jose, CA), (19-24 January 2008).

3.      Tyrone F. Hill, Luis Fernando Velasquez-Garcia, Benjamin A. Wilhite, W. Terry Rawlins, Seonkyung Lee, Steven J. Davis, Klavs F. Jensen, Alan H. Epstein, Carol Livermore, "A MEMS Singlet Oxygen Generator—Part II: Experimental Exploration of the Performance Space ," IEEE Journal of Microelectromechanical Systems 16 (6), 1492-1505 (December 2007).

4.      Wilson Rawlins, Seonkyung Lee, Steven Davis, "Kinetics of Oxygen Discharges and I(2P1/2) Excitation for EOIL ," presented at SPIE LASE 2007: High Energy/Average Power Lasers and Intense Beam Applications (San Jose, CA), (23 January 2007).

5.      W.T. Rawlins, D.B. Oakes, S.J. Davis, "Hyperspectral Infrared Imaging of HF(v,J)Chemiluminescence and Gain in Chemically Reacting Flowfields ," The Journal of Physical Chemistry A 111 (29), 6860-6869 (2007).

6.      Amy J. R. Bauer, Seonkyung Lee, Danthu Vu, Kristin L. Galbally-Kinney, William J. Kessler, W. Terry Rawlins, Steven J. Davis, "Studies of an Advanced Iodine Laser Concept ," presented at SPIE Photonics West (San Jose, CA), (January 2006).

7.      W.T. Rawlins, S. Lee, W.J. Kessler, D.B. Oakes, L.G. Piper, S.J. Davis, "The electric oxygen-iodine laser: Chemical kinetics of O2(a1Δ) production and I(2P1/2) excitation in microwave discharge systems ," presented at LASE 2006 High Energy/Average Power Lasers and Intense Beam Applications (San Jose, CA), (21-26 January 2006).

8.      Amy J.R. Bauer, Seonkyung Lee, Danthu Vu, Kristin L. Galbally, William J. Kessler, Steven J. Davis, "Studies of an Advanced Iodine Laser Concept ," presented at 36th AIAA Plasmadynamics and Lasers Conference (Toronto, Canada), (6-9 June 2005).

9.      Wilson T. Rawlins, Seonkyung Lee, William J. Kessler, Lawrence G. Piper, Steven J. Davis, "Advanced Diagnostics and Kinetics of Oxygen-Iodine Laser Systems ," presented at 36th AIAA Plasmadynamics and Lasers Conference (Toronto, Ontario, Canada), (6-9 June 2005).

10. W.T. Rawlins, D.B. Oakes, S.J. Davis, "Hyperspectral Infrared Imaging of HF(v,J) Chemiluminescence and Gain in Chemically Reacting Flowfields ," presented at 36th AIAA Plasmadynamics and Lasers Conference (Toronto, Ontario, Canada), (6-9 June 2005).

11. W.T. Rawlins, S. Lee, W.J. Kessler, S.J. Davis, "Observations of Gain on the I(2P1/2 → 2P3/2) Transition by Energy Transfer from O2(a1∆g) Generated by a Microwave Discharge in a Subsonic Flow Reactor ," Applied Physics Letters 86 (5), 051105-1-3 (31 January 2005).

12. S.J. Davis, W.T. Rawlins, W.J. Kessler, S. Lee, A.J.R. Hunter, M. Silva, "Next Generation Diagnostics for COIL: New Approaches for Measuring Critical Parameters ," presented at XV International Symposium on Gas Flow and Chemical Lasers and High Power Lasers Conference (Prague, Czech Republic), (30 August - 3 September 2004).

13. S.J. Davis, W.T. Rawlins, S. Lee, M.L. Silva, W.J. Kessler, P.A. Mulhall, "Advanced Diagnostics for COIL and DOIL ," presented at SPIE High Power Laser Ablation V (Taos, NM) edited by Claude R. Phipps,, Proceedings of SPIE 5448 (25-30 April 2004).