Illumination of ac-biased photorefractive Bi<sub>12</sub>TiO<sub>20</sub> crystals with a coherent light beam results in the development of strong nonlinear scattering. Theoretically and experimentally we investigate the angular and polarization characteristics of the scattered light for the diagonal ([1¯1¯1]) optical configuration and different polarization states of the pump. A satisfactory understanding of the observed scattering properties is achieved for most of the cases investigated.
© 2003 Optical Society of America
O. Filippov, K. H. Ringhofer, M. Shamonin, E. Shamonina, A. A. Kamshilin, E. Nippolainen, and B. I. Sturman, "Polarization properties of light-induced scattering in Bi12TiO20 crystals: theory and experiment for diagonal geometry," J. Opt. Soc. Am. B 20, 677-684 (2003)