Investigation of the Process of Optical Damage of ZnGeP 2  Crystals Using Digital Holography

A. I. Gribenyukov; V. V. Dyomin; A. S. Olshukov; S. N. Podzyvalov; I. G. Polovtsev; N. N. Yudin

doi:10.1007/s11182-019-01635-w

Investigation of the Process of Optical Damage of ZnGeP₂ Crystals Using Digital Holography

Authors: Gribenyukov A.I.¹, Dyomin V.V.², Olshukov A.S.², Podzyvalov S.N.²^,3, Polovtsev I.G.², Yudin N.N.²^,3
Affiliations:
1. Institute of Monitoring of Climatic and Ecological Systems of the Siberian Branch of the Russian Academy of Sciences
2. National Research Tomsk State University
3. LLC “Laboratory of Optical Crystals,”
Issue: Vol 61, No 11 (2019)
Pages: 2042-2052
Section: Article
URL: https://journal-vniispk.ru/1064-8887/article/view/241213
DOI: https://doi.org/10.1007/s11182-019-01635-w
ID: 241213

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Abstract

A method of visualization of the process of optical damage of a ZnGeP₂ single crystal using digital holography is suggested. The mechanism of the ZnGeP₂ single crystal damage is investigated at energy density ~0.3–0.6 J/cm². The temperature in the damage channel during its formation is estimated. The data obtained allow the conclusion on the thermal nature of ZnGeP₂ crystal damage to be made under the action of laser radiation with a wavelength of ~2.1 μm.