Influence of After-Growth Treatments on the Optical Parameters of Teraherz ZnGeP2 Crystals


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Abstract

Results of investigations are presented of the THz spectra of the refractive index n(v) and of the extinction coefficient k(v) for ZnGeP2 single crystals with different degrees of technological treatment – after growth by the vertical Bridgman technique, after heat treatment at temperatures above the Debye temperature for the highest-frequency phonons, and after modification of the single-crystal properties under irradiation by fast electrons (~4 MeV).

About the authors

A. I. Gribenyukov

Institute of Monitoring of Climatic and Ecological Systems of the Siberian Branch of the Russian Academy of Sciences

Author for correspondence.
Email: loc.ltd@yandex.ru
Russian Federation, Tomsk

K. V. Dorozhkin

National Research Tomsk State University

Email: loc.ltd@yandex.ru
Russian Federation, Tomsk

A. N. Morozov

LLC “Laboratory of Optical Crystals,”

Email: loc.ltd@yandex.ru
Russian Federation, Tomsk

V. I. Suslyaev

National Research Tomsk State University

Email: loc.ltd@yandex.ru
Russian Federation, Tomsk

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