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Proceedings Article

CO laser frequency conversion in nonlinear crystals ZnGeP2 and GaSe

[+] Author Affiliations
Yu. M. Andreev, G. N. Lanskii, A. N. Morozov

Institute for Monitoring of Climatic and Ecological Systems (Russian Federation)

A. Yu. Gerasimov, S. M. Grigoryants

National Research Nuclear Univ. MEPhI (Russian Federation)

A. A. Ionin, I. O. Kinyaevsky, Yu. M. Klimachev, A. Yu. Kozlov, A. A. Kotkov

P.N. Lebedev Physical Institute (Russian Federation)

Proc. SPIE 7994, LAT 2010: International Conference on Lasers, Applications, and Technologies, 79941O (February 16, 2011); doi:10.1117/12.882815
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From Conference Volume 7994

  • LAT 2010: International Conference on Lasers, Applications, and Technologies
  • Vladislav Panchenko; Gérard Mourou; Aleksei M. Zheltikov
  • Kazan, Russian Federation | August 23, 2010

abstract

Experimental and modeling results on CO laser frequency conversion are presented. A Q-switched multiline CO laser with pulse repetition rate 20-150 Hz of sub-microsecond pulses and electron beam sustained discharge frequency-tunable mode-locked CO laser were used in the experiments on second harmonic generation (SHG) in high-quality ZnGeP2 and GaSe crystals. Internal SHG efficiency exceeded 12.4 % in 12 mm ZnGeP2 crystal. The SHG in 4 mm GaSe crystal was observed with internal efficiency of 0.3%. A possibility of difference frequency generation of fundamental and firstovertone CO laser lines to cover spectral range of ~4.0-5.0 μm is discussed. It is estimated that the difference frequency generation of neighboring lines of both fundamental and first-overtone bands allows one to obtain oscillation in THz spectral range within ~200-3000 μm.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Yu. M. Andreev ; A. Yu. Gerasimov ; S. M. Grigoryants ; A. A. Ionin ; I. O. Kinyaevsky, et al.
"CO laser frequency conversion in nonlinear crystals ZnGeP2 and GaSe", Proc. SPIE 7994, LAT 2010: International Conference on Lasers, Applications, and Technologies, 79941O (February 16, 2011); doi:10.1117/12.882815; http://dx.doi.org/10.1117/12.882815


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