A. I. Gribenyukov, S. N. Podzyvalov, A. N. Soldatov, A. S. Shumeiko, N. A. Yudin, N. N. Yudin, V. Yu. Yurin, “Defectoscopy of ZnGeP<sub>2</sub> single crystals using a strontium vapour laser”, Kvantovaya Elektronika, 2018, Volume 48, Number 5,Pages <nobr>491

This article is cited in 5 papers

Laser applications

Defectoscopy of ZnGeP₂ single crystals using a strontium vapour laser

A. I. Gribenyukov^ab, S. N. Podzyvalov^b, A. N. Soldatov^b, A. S. Shumeiko^b, N. A. Yudin^b, N. N. Yudin^b, V. Yu. Yurin^b

^a Institute of Monitoring of Climatic and Ecological Systems, Siberian Branch of the Russian Academy of Science, Tomsk
^b Tomsk State University

Abstract: A modified method of optical defectoscopy of ZnGeP₂ single crystal plates using a strontium vapour laser (λ = 1.03 and 1.09 μm) is proposed based on shadow imaging of internal defects in plates cut parallel to the (100) plane. It is shown that the use of a strontium vapour laser with a wavelength of 6.45 μm makes it possible to study inhomogeneities in large-size ZnGeP₂ samples. The possibility of fabricating a projection defectoscope for monitoring breakdown development in ZnGeP₂ crystals is considered.

Keywords: self-contained lasers, defectoscope, single crystal.

Received: 30.08.2017
Revised: 05.02.2018