23 February 2004 ZnGeP2 crystal: applications for visualization or IR signals
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Proceedings Volume 5397, Tenth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part II: Laser Sensing and Atmospheric Physics; (2004) https://doi.org/10.1117/12.548593
Event: Tenth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 2003, Tomsk, Russian Federation
Abstract
Up-conversion of long, 3-50-μs, pulses imitating input signals of CO2 laser differential absorption lidars was investigated experimentally. Efficiency of 1 to 2% has been acheived when using 1.06-μm Nd:YAG pump emission and 3.9 mm ZnGeP2 crystal that is characterized by absorption coefficient equal to 2.0 cm-1 at this wavelength and 2.5cm-1 at up-converted 0.9548 μm one. When using a silicon avalanche photodiode operating in photon counting mode operation, 450 times increase in signal-to-noise ration can be realized in comparison with dirct detection of the CO2 laser lidar signals by MCT photodiode.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yuri M. Andreev, Pavel P. Geiko, Elena Kotsubinskaya, "ZnGeP2 crystal: applications for visualization or IR signals", Proc. SPIE 5397, Tenth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part II: Laser Sensing and Atmospheric Physics, (23 February 2004); doi: 10.1117/12.548593; https://doi.org/10.1117/12.548593
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