Model and experimental investigation of frequency conversion in AgGaGexS2(1+x) (x=0, 1) crystals

作者:Wang Tie Jun; Kang Zhi Hui; Zhang Hong Zhi; Feng Zhi Shu; Jiang Yun; Gao Jin Yue*; Andreev Yury M; Lanskii Gregory V; Shaiduko Anna V
来源:Journal of Physics D: Applied Physics , 2007, 40(5): 1357-1362.
DOI:10.1088/0022-3727/40/5/008

摘要

Analysis of available and developed data on phase matching in AgGaGexS2(1+x) (x = 0, 1) crystals is carried out. Nanosecond AgGaS2 type I optical parametric oscillator with a continuously tunable range 2.65 - 5.29 mu m is demonstrated pumped by a Q-switched Nd : YAG laser. An output pulse energy of up to 0.56 mJ at 4 mu m is recorded. Phase matching of second harmonic generation in both crystals is represented. Best sets of Sellmeier equations for two crystals are determined.