Abstract

We implement a random-walk scattering model in a nonlinear beam-propagation code to simulate fanning in photorefractive crystals. The characteristics of the scatterers were verified by comparisons of the measured first-order statistics of the scattered intensity with a theoretical expression of the probability-density function based on a random-walk scattering model. Both the size and the separation of the scatterers can be varied, enabling us to tailor our numerical simulations to experimental measurements of nonamplified and amplified scattering. We show that a one-dimensional model does not accurately simulate amplified scattering for crystals with a nondiagonal electro-optic tensor and that surface scattering alone may not account for the angular dependence of the amplified scattering distributions.

© 1995 Optical Society of America

Noise in χ⁽³⁾ and photorefractive amplifiers

Shmuel Sternklar and Yaakov Glick
Opt. Lett. 20(23) 2369-2371 (1995)

Detection of moving objects embedded within scattering media by use of speckle methods

P. Naulleau, D. Dilworth, E. Leith, and J. Lopez
Opt. Lett. 20(5) 498-500 (1995)

Photorefractive surface waves

Mark Cronin-Golomb
Opt. Lett. 20(20) 2075-2077 (1995)

Depth-resolved holographic imaging through scattering media by photorefraction

S. C. W. Hyde, N. P. Barry, R. Jones, J. C. Dainty, P. M. W. French, M. B. Klein, and B. A. Wechsler
Opt. Lett. 20(11) 1331-1333 (1995)

Nonstationary self-focusing in photorefractive media

A. A. Zozulya and D. Z. Anderson
Opt. Lett. 20(8) 837-839 (1995)