Optical Rectification in Doped GaSe Crystals

Abstract:

It was demonstrated that S- and Te-doped GaSe crystals are useful and prospective for mid-IR and THz generation by optical rectification as well as phase matched mixing of spectral components of the fs pulse (down conversion). Phase matching curves for down-conversion in the S-doped and Te-doped GaSe. The sample optimally doped with sulfur (2.5 mas. %) have shown better characteristics under high pump fluencies than ZnTe material used in commercial devices.

• Periodical: Key Engineering Materials (Volume 683)
• Pages: 237-242
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.683.237
• Online since: February 2016
• Authors: Gregory Lanskii, Konstantin Kokh*, Valery A. Svetlichnyi, Yury Andreev
• Keywords: Doping, Down-Conversion, Gallium Selenide, Mid-IR Source, Optical Rectification, THz Generation

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