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Opt Lett. 2008 Jan 15;33(2):150-2.

Frequency-degenerate nonlinear light scattering in low-symmetry crystals.

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  • 1Institute of Physics, National Academy of Sciences, 03 650 Kyiv, Ukraine. shumeluk@iop.kiev.ua


A considerable distinction of light-induced scattering in optically biaxial crystals comes from the fact that the principal axes of the optical indicatrix do not coincide with the crystallographic directions. The study of photorefractive scattering in Sn2P2S6 (monoclinic symmetry) revealed the particular requirements as to light polarization for excitation of parametric scattering and the polarization inhomogeneity of wide-angle scattering.

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