SHG in γ-Ga2S3 powder

Dmitry M. Ezhov; Alexander S. Tanichev; Artem B. Kuznetsov; Konstantin A. Kokh; Gregory V. Lanskii; Yury M. Andreev; Valery A. Svetlichnyi

doi:10.1117/12.2303581

16 April 2018 SHG in γ-Ga₂S₃ powder

Dmitry M. Ezhov, Alexander S. Tanichev, Artem B. Kuznetsov, Konstantin A. Kokh, Gregory V. Lanskii, Yury M. Andreev, Valery A. Svetlichnyi

Author Affiliations +

Proceedings Volume 10614, International Conference on Atomic and Molecular Pulsed Lasers XIII; 1061424 (2018) https://doi.org/10.1117/12.2303581
Event: XIII International Conference on Atomic and Molecular Pulsed Lasers, 2017, Tomsk, Russia

Abstract

We report results on comparative study of SHG in powder of promising nonlinear γ-Ga₂S₃ crystal. Digallium trisulfide powders with particle size from 20 μm to 500 μm were tested in comparison with powders of well-known LBO, BBO, KABO, KDP, and LN crystals under the pumping by 7 ns 1064 Nd:YAG laser. Laser-induced damage threshold of different powder fractions were determined. The γ-Ga₂S₃ shown high damage threshold and large SHG intensity: 56 times to that in LBO powder, 15 in BBO, 50 in KABO, 67 in KDP, and 3 in LN (for particle size: 20–50 μm), that renders it amongst the most promising crystal for frequency conversion of high-intense nanosecond radiation of near-IR lasers by optical rectification technique.

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Dmitry M. Ezhov, Alexander S. Tanichev, Artem B. Kuznetsov, Konstantin A. Kokh, Gregory V. Lanskii, Yury M. Andreev, and Valery A. Svetlichnyi "SHG in γ-Ga₂S₃ powder", Proc. SPIE 10614, International Conference on Atomic and Molecular Pulsed Lasers XIII, 1061424 (16 April 2018); https://doi.org/10.1117/12.2303581

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