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Thermooptic Properties of KYbхY1–x(WO4)2 Laser Crystals
Abstract
Thermo-optic coefficients of monoclinic KYbxY1–x(WO4)2 (х = 0, 0.05, 0.1, 0.2, 0.5 и 1.0) crystals for E//Np, E//Nm и E//Ng light polarizations at wavelength of 1.06 μm were studied using laser beam deviation technique for a medium with a linear temperature gradient. KYbxY1–x(WO4)2 crystals were grown by the modified Czochralski method using a dynamic growth regime and selection of the required temperature gradient at the crystallisation front. The coefficients dn/dT obtained for all light polarizations are negative, and their absolute values decrease with increasing coefficient x. It is shown that the coefficients dni/dT (i = p, m, g) for KYbxY1–x (WO4)2 crystals depend linearly on their stoichiometry coefficient x.
About the Authors
A. V. Hertsova
Center for Optical Materials and Technologies, Belarusian National Technical University
Belarus
Belarus
Minsk
S. A. Guretskii
SSPA “Scientific Practical Materials Research Center of NAS of Belarus”
Belarus
Belarus
Minsk
D. V. Karpinsky
SSPA “Scientific Practical Materials Research Center of NAS of Belarus”
Belarus
Belarus
Minsk
K. L. Trukhanova
SSPA “Scientific Practical Materials Research Center of NAS of Belarus”
Belarus
Belarus
Minsk
K. V. Yumashev
Center for Optical Materials and Technologies, Belarusian National Technical University
Belarus
Belarus
Minsk
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Review
For citations:
Hertsova A.V., Guretskii S.A., Karpinsky D.V., Trukhanova K.L., Yumashev K.V. Thermooptic Properties of KYbхY1–x(WO4)2 Laser Crystals. Zhurnal Prikladnoii Spektroskopii. 2025;92(2):255-260. (In Russ.)
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