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The characteristics of light-induced scattering in LiNbO(3) and LiNbO(3):Fe crystals are studied. The experimental and theoretical results show that the light-induced scattering for an extraordinary illumination beam consists of self-defocusing, self-focusing, and speckle. They are caused by the light-induced lensing and fluctuation of the refractive index in the crystals.
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Song et al. (1993) studied this question.
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