11 April 2001 Near infrared (NIR) imaging techniques using lasers and nonlinear crystal optical parametric oscillator/amplifier (OPO/OPA) imaging and transferred electron (TE) photocathode image intensifiers
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Abstract
Laboratory experiments utilizing different near-infrared (NIR) sensitive imaging techniques for LADAR range gated imaging at eye-safe wavelengths are presented. An OPO/OPA configuration incorporating a nonlinear crystal for wavelength conversion of 1.56 micron probe or broadcast laser light to 807 nm light by utilizing a second pump laser at 532 nm for gating and gain, was evaluated for sensitivity, resolution, and general image quality. These data are presented with similar test results obtained from an image intensifier based upon a transferred electron (TE) photocathode with high quantum efficiency (QE) in the 1-2 micron range, with a P-20 phosphor output screen. Data presented include range-gated imaging performance in a cloud chamber with varying optical attentuation of laser reflectance images.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
George J. Yates, George J. Yates, Thomas E. McDonald, Thomas E. McDonald, David E. Bliss, David E. Bliss, Stewart M. Cameron, Stewart M. Cameron, Kenneth H. Greives, Kenneth H. Greives, Fred J. Zutavern, Fred J. Zutavern, } "Near infrared (NIR) imaging techniques using lasers and nonlinear crystal optical parametric oscillator/amplifier (OPO/OPA) imaging and transferred electron (TE) photocathode image intensifiers", Proc. SPIE 4308, High-Speed Imaging and Sequence Analysis III, (11 April 2001); doi: 10.1117/12.425000; https://doi.org/10.1117/12.425000
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