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29 June 1998 Nonlinear tunable parametric luminescence in ZnGeP2 crystals
Yu. M. Andreev, Gopal C. Bhar, Alexander I. Gribenyukov, V. A. Verozubova, K. L. Vodopyanov
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Proceedings Volume 3403, International Conference on Atomic and Molecular Pulsed Lasers II; (1998) https://doi.org/10.1117/12.311962
Event: International Conference on Atomic and Molecular Pulsed Lasers, 1997, Tomsk, Russian Federation
Abstract
Infrared tunability of parametric superluminescence is studied in ZnGeP2. Q-switched and actively mode-locked Er3+:YSGG laser (2.79 micrometers ) is used to investigate the temperature tunability. Angular tunable wavelength gap near degeneracy in type II phase matching is partially covered by crystal temperature rise thereby eliminating beam walk-off/displacement unavoidable in angular tuning. The result is explained by changes in crystal phonon absorption, birefringence and refractive indices with rise in temperature.
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Yu. M. Andreev, Gopal C. Bhar, Alexander I. Gribenyukov, V. A. Verozubova, and K. L. Vodopyanov "Nonlinear tunable parametric luminescence in ZnGeP2 crystals", Proc. SPIE 3403, International Conference on Atomic and Molecular Pulsed Lasers II, (29 June 1998); https://doi.org/10.1117/12.311962
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KEYWORDS
Crystals
Laser crystals
Absorption
Nonlinear crystals
Temperature metrology
Infrared radiation
Luminescence
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