Effect of antireflection microstructures on the optical properties of GaSe-Reference-Cited by-同舟云学术

Effect of antireflection microstructures on the optical properties of GaSe

Published:2022-03-23 Issue:4 Volume:12 Page:1593
ISSN:2159-3930
Container-title:Optical Materials Express
language:en
Short-container-title:Opt. Mater. Express

Author:

Yelisseyev Alexander P.¹²,Isaenko Lyudmila I.¹²^ORCID,Lobanov Sergey I.¹²,Dostovalov Alexander V.³,Bushunov Andrey A.¹⁴^ORCID,Tarabrin Mikhail K.¹⁴⁵^ORCID,Teslenko Andrei A.¹⁴,Lazarev Vladimir A.⁴^ORCID,Shklyaev Alexander A.¹⁶,Babin Sergey A.³,Goloshumova Alina A.¹²^ORCID,A.Gromilov Sergey¹⁷

Affiliation:

1. Novosibirsk State University

2. Sobolev Institute of Geology and Mineralogy of the Siberian Branch of the Russian Academy of Sciences

3. Institute of Automation and Electrometry of the Siberian Branch of the Russian Academy of Sciences

4. Bauman Moscow State Technical University

5. Lebedev Physical Institute of the Russian Academy of Sciences

6. Rzhanov Institute of Semiconductor Physics of the Siberian Branch of the Russian Academy of Sciences

7. Nikolaev Institute of Inorganic Chemistry of the Siberian Branch of the Russian Academy of Sciences

Abstract

The main application area for GaSe crystals is nonlinear optics, but there are problems with machining and antireflection coatings due to the layered structure of GaSe. Large GaSe crystals with dominant ε-modification were grown. Using various harmonics of a femtosecond laser, antireflection microstructures (ARM) were fabricated by laser ablation on the plate surface and modes providing increased transmission up to 90% in the mid-IR were selected. Using SEM and optical microscopy, as well as EDX and optical spectroscopy, defects on the GaSe surface and their effect on the spectral region and the degree of transmission increase were studied.

Funder

Russian Science Foundation

Russian Academy of Sciences

Russian Federation Budget

Publisher

Optica Publishing Group

Subject

Electronic, Optical and Magnetic Materials

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