Yu. M. Andreev, V. G. Voevodin, A. I. Gribenyukov, O. Ya. Zyryanov, I. I. Ippolitov, A. N. Morozov, A. V. Sosnin, G. S. Khmel'nitskiĭ, “Efficient generation of the second harmonic of tunable CO2 laser radiation in ZnGeP2”, Kvantovaya Elektronika, 1984, Volume 11, Number 8,Pages 1511

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Letters to the editor

Efficient generation of the second harmonic of tunable CO₂ laser radiation in ZnGeP₂

Yu. M. Andreev, V. G. Voevodin, A. I. Gribenyukov, O. Ya. Zyryanov, I. I. Ippolitov, A. N. Morozov, A. V. Sosnin, G. S. Khmel'nitskiĭ

Abstract: The second harmonic of CO₂ laser radiation was generated for the first time in ZnGeP₂ single crystals under phase-matching conditions when the pump (fundamental-frequency) radiation was tuned within the ranges 9.19–9.7 and 10.15–10.8 μ. A study was made of the spectral, angular, and temperature widths of the phase-matching curve, of the dependence of the efficiency of conversion to the second harmonic on the pump wavelength and temperature of a crystal, and of the rate of reduction in the phase-matching angle as a result of heating.

UDC: 621.378.4

PACS: 42.55.Lt, 42.60.By, 42.65.Ky, 42.60.Jf, 42.60.Lh, 42.60.Fc

Received: 18.04.1984