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Vol. 19, issue 02-03, article # 12

pdf Geiko P. P., Kotsubinskaya E. P. New biaxial mixed crystals for frequency conversion of femtosecond pulses. // Atmospheric and oceanic optics. 2006. V. 19. No. 02-03. P. 147-151.
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Abstract:

We have studied a possibility of using some recently investigated biaxial (LiInS2, LiInSe2, LiGaS2, LiGaSe2, AgGaGeS4) as well as new (LiIn(SxSe1-x)2 and LiGa(SxSe1-x)2) mixed nonlinear crystals as potential frequency converters of femtosecond laser pulses. Main attention is paid to generation of frequency tunable near and middle IR emission in optical parametric oscillators pumped by radiation of Ti:Sapphire lasers available. The investigation includes estimation of phase- and group-velocity matching conditions and potential efficiencies of the conversion.