Abstract
The optical properties and hardness of GaSe, GaSe:Al, GaSe:S:Al, and GaSe:Al:O crystals are studied to create effective terahertz radiation generators. Doped crystals differ from pure GaSe in high mechanical and optical properties at a optimum doping level. Oxygen doping allows wide ranging changes in birefringence in the terahertz range.
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This work was supported by the Russian Science Foundation, project no. 19-19-00241.
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Translated by A. Ivanov
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Lubenko, D.M., Ezhov, D.M., Losev, V.F. et al. IR-to-THz Down Conversion in Nonlinear GaSe:Al Crystals. Bull. Russ. Acad. Sci. Phys. 84, 780–782 (2020). https://doi.org/10.3103/S1062873820070163
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DOI: https://doi.org/10.3103/S1062873820070163