The effect of impurity on temperature variations in the refractive indices and thickness of TGS crystals

V. Yo. Stadnyk; B. V. Andriyevsky; V. M. Gaba; Z. A. Kogut

doi:10.1134/S0030400X16060229

The effect of impurity on temperature variations in the refractive indices and thickness of TGS crystals

Авторлар: Stadnyk V.Y.¹, Andriyevsky B.V.², Gaba V.M.³, Kogut Z.A.³
Мекемелер:
1. Franko Lviv National University
2. Koszalin University of Technology
3. Lviv Polytechnic National University
Шығарылым: Том 120, № 6 (2016)
Беттер: 952-957
Бөлім: Physical Optics
URL: https://ogarev-online.ru/0030-400X/article/view/164852
DOI: https://doi.org/10.1134/S0030400X16060229
ID: 164852

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Аннотация

Temperature dependences of optical path difference δΔ_і and the relative changes in thickness δl_і/l of TGS crystals doped with L-valine are studied. Temperature dependences of the relative changes in refractive indices δn_і/(n–1) are calculated. The anisotropy coefficients of refractive indices А_n–1(Т) and linear expansion Аα(Т) are calculated, and a characteristic minimum of these dependences is found near the phase transition temperature.