J.Huang, D.Ren, X.Hu, Y.Qu, Yu.Andreev, P.Geiko, A.Shaiduko, S.Grechin
"Optical properties and phase-matching in LiInS2"
Chinese Optics Letters, 2003, v.1, N4, p.237-240

      Investigation results on linear and non-linear optical properties, damage threshold and potentional efficiencies of biaxial negtive LiInS2 crystal are represented. It shows that the crystal has phase-matching and group-velocity matching in wide spectral range for second harmonic, sum- and difference-frequency generation of visible? near and middle IR lasers. The possibilities of designing middle IR optical parametric oscillator (OPO) pumped by Nd:YAG and dye lasers and specially possibility of frequency conversion with 3 um range femtosecond erbium lasers are given.

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