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Abstract
We present near and far field patterns of photoinduced light scattering and interference in SBN:75 crystal, considered as the a Fabry-Perot resonator. It is shown that the interference of waves with their multiple reflections on the crystal faces affects the distribution of radiation intensity in the crystal and, consequently, the development of the photoinduced scattering process. The experimental results of light scattering features in various exposure modes of SBN-75 crystal by a focused He-Cd laser beam (λ = 0.44 µm) are presented. Based on theoretical consideration, the modified holographic model of photoinduced scattering process is suggested.