70 MW-level picosecond mid-infrared radiation generation by difference frequency generation in AgGaS2, BaGa4Se7, LiGaSe2, and LiGaS2

Michal Jelínek, Milan Frank, Václav Kubeček +6

Comparative study of nonlinear crystals for picosecond difference frequency generation in mid-IR is presented. Nonlinear crystals of AgGaS${}_2$, BaGa${}_4$Se${}_7$, LiGaSe${}_2$, and LiGa…