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Proceedings Paper

CO laser frequency conversion in nonlinear crystals ZnGeP2 and GaSe
Author(s): Yu. M. Andreev; A. Yu. Gerasimov; S. M. Grigoryants; A. A. Ionin; I. O. Kinyaevsky; Yu. M. Klimachev; A. Yu. Kozlov; A. A. Kotkov; G. N. Lanskii; A. N. Morozov
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Paper 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.

Paper Details

Date Published: 17 February 2011
PDF: 8 pages
Proc. SPIE 7994, LAT 2010: International Conference on Lasers, Applications, and Technologies, 79941O (17 February 2011); doi: 10.1117/12.882815
Show Author Affiliations
Yu. M. Andreev, Institute for Monitoring of Climatic and Ecological Systems (Russian Federation)
A. Yu. Gerasimov, National Research Nuclear Univ. MEPhI (Russian Federation)
S. M. Grigoryants, National Research Nuclear Univ. MEPhI (Russian Federation)
A. A. Ionin, P.N. Lebedev Physical Institute (Russian Federation)
I. O. Kinyaevsky, P.N. Lebedev Physical Institute (Russian Federation)
Yu. M. Klimachev, P.N. Lebedev Physical Institute (Russian Federation)
A. Yu. Kozlov, P.N. Lebedev Physical Institute (Russian Federation)
A. A. Kotkov, P.N. Lebedev Physical Institute (Russian Federation)
G. N. Lanskii, Institute for Monitoring of Climatic and Ecological Systems (Russian Federation)
A. N. Morozov, Institute for Monitoring of Climatic and Ecological Systems (Russian Federation)


Published in SPIE Proceedings Vol. 7994:
LAT 2010: International Conference on Lasers, Applications, and Technologies

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