New mixed LiIn(S1-xSex)2 crystals for frequency conversion of IR lasers

LiInSe2 and mixed LiIn(S 0.5 Se 0.5 )2 crystals are grown by vertical Bridgman-Stockbarger method. Optical properties of deep red LiInSe2, yellowish LiInS2, and orange LiIn(S 0.5 Se 0.5)2 crystals are investigated. Second harmonic generation has been evaluated in LiInSe2 element 6.3 mm long under pumping by CO2 laser, 30 ns pulses, and as high external peak power efficiency as 11.7% has been obtained under optimal conditions.© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.