Ferroelectric tin hypothiodiphosphate (SnPS) crystals are well-known for their significant piezoelectric, electro-optic, and nonlinear optical properties. These crystals have usually been grown by a vapor transport technique. We report in this paper on the first study of photorefractive nonlinearity in SnPS crystals grown by the Bridgman method. Pronounced photorefraction is observed in the near-infrared region of the spectrum even with no preliminary optical sensitizing.
Near-infrared-sensitive photorefractive Sn2P2S6 crystals grown by the Bridgman method
O. M. Shumelyuk, A. Yu. Volkov, Ya. M. Skrypka, L. E. Halliburton, N. C. Giles, C. A. Lenyk, S. A. Basun, A. A. Grabar, Yu. M. Vysochansky, S. G. Odoulov, D. R. Evans; Near-infrared-sensitive photorefractive Sn2P2S6 crystals grown by the Bridgman method. J. Appl. Phys. 14 March 2020; 127 (10): 103103. https://doi.org/10.1063/1.5143204
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