Fabrication of antireflection microstructure on GaSe crystal surface by single-pulse femtosecond laser ablation

Andrey A. Bushunov; Andrei A. Teslenko; Mikhail K. Tarabrin; Vladimir A. Lazarev; Lyudmila I. Isaenko; Alexander P. Eliseev; Sergei I. Lobanov; Vitalii N. Vedenyapin

doi:10.1117/12.2570879

16 October 2020 Fabrication of antireflection microstructure on GaSe crystal surface by single-pulse femtosecond laser ablation

Andrey A. Bushunov, Andrei A. Teslenko, Mikhail K. Tarabrin, Vladimir A. Lazarev, Lyudmila I. Isaenko, Alexander P. Eliseev, Sergei I. Lobanov, Vitalii N. Vedenyapin

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Proceedings Volume 11514, Laser-induced Damage in Optical Materials 2020; 1151419 (2020) https://doi.org/10.1117/12.2570879
Event: SPIE Laser Damage, 2020, Online Only

Abstract

GaSe crystals that are promising as nonlinear optical converters in the mid- and far-infrared ranges are charac- terized by high Fresnel losses leading to transmittance per surface at the level of 77%. In this study, antireflection microstructures (ARMs) were fabricated on the surface of the GaSe single crystal by single-pulse femtosecond laser ablation. This method makes it possible to increase the transmission up to up to 92%.

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Andrey A. Bushunov, Andrei A. Teslenko, Mikhail K. Tarabrin, Vladimir A. Lazarev, Lyudmila I. Isaenko, Alexander P. Eliseev, Sergei I. Lobanov, and Vitalii N. Vedenyapin "Fabrication of antireflection microstructure on GaSe crystal surface by single-pulse femtosecond laser ablation", Proc. SPIE 11514, Laser-induced Damage in Optical Materials 2020, 1151419 (16 October 2020); https://doi.org/10.1117/12.2570879

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