Model studies of THz-range generation by down-conversion in GaSe and GaSeS crystals

D. M. Lubenko; V. F. Losev; Yu. M. Andreev; G. V. Lanskii

doi:10.1117/12.2224939

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15 December 2015 Model studies of THz-range generation by down-conversion in GaSe and GaSeS crystals

D. M. Lubenko, V. F. Losev, Yu. M. Andreev, G. V. Lanskii

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Proceedings Volume 9810, International Conference on Atomic and Molecular Pulsed Lasers XII; 98101T (2015) https://doi.org/10.1117/12.2224939
Event: XII International Conference on Atomic and Molecular Pulsed Lasers, 2015, Tomsk, Russian Federation

Abstract

Model study of not phase matched and phase matched optical rectification or down-conversion of Ti:Sapphire laser pulses at 950 nm into THz and far-IRrange in pure and S-doped GaSe single crystals is carried out. First, the ordinary and extraordinary wave dispersions of the GaSe refractive indices were measured by terahertz time-domain spectroscopy (THz-TDS). Measured data were approximated in the form of Sellmeier dispersion equations for 0.62 – 2000 μm range with using available shorter wave data.

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D. M. Lubenko, V. F. Losev, Yu. M. Andreev, and G. V. Lanskii "Model studies of THz-range generation by down-conversion in GaSe and GaSeS crystals", Proc. SPIE 9810, International Conference on Atomic and Molecular Pulsed Lasers XII, 98101T (15 December 2015); https://doi.org/10.1117/12.2224939

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