Abstract
Several second order nonlinear crystals were numerically studied from a point of view of broadband ultrashort mid-IR pulse generation. The following crystals were considered: AgGaS 2 , AgGaSe 2 , BaGa 2 GeSe 6 , CdGePAs 2 , CdSiP 2 , GaSe, HgGa 2 S 4 , PbIn 6 Te 10 , and ZnGeP 2 . Crystal properties responsible for efficient frequency conversion were estimated. The optimal pump laser wavelength, mid-IR pulse bandwidth, and relative efficiency were determined and compared for each crystal. • second order nonlinear crystals. • AgGaS 2 , AgGaSe 2 , BaGa 2 GeSe 6 , CdGePAs 2 , CdSiP 2 , GaSe, HgGa 2 S 4 , PbIn 6 Te 10 , ZnGeP 2 . • Ultrashort mid-IR pulse generation. • Broadband frequency conversion.
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