Photorefractive materials combine photoconductive and electro-optic properties: light affects
their electrical conductivity; their optical properties (refractive index, etc.) are affected by …

Solutions to the band-transport equations are developed to include effects on the amplitude,
dynamics, and spatial-frequency response of the space-charge field when periodic or dc …

Propagation of the light beam in a thin photorefractive crystal with the diffusion-type
mechanism of nonlinearity has been studied both experimentally and theoretically. Total …

We experimentally observed the self-channeling of the light beam in photorefractive
Bi12TiO20 fiberlike sample owing to the strong fanning effect. It results in significant speed …

We study the simultaneous influence of optical activity, piezoelectric effect, and elasto-optic
effect on two-wave mixing (TWM) under diffusion recording in photorefractive Bi_12TiO_20 …

This paper investigates the possibilities of complex nonlinear dynamic signal generation
using a simple photorefractive two-wave mixing system without any feedback using …

We show theoretically and experimentally that switching an applied square-wave field
produces strong and short pulses of the outgoing signal during two-wave mixing in sillenite …

The instability leading to the appearance of subharmonics in the presence of a square wave
applied field is investigated both theoretically and experimentally. The threshold conditions …

A vector approach is used to solve four-wave mixing in cubic, optically active, photorefractive
media for the case of undepleted pumps and in the absence of absorption. It is shown that in …

The results of a theoretical analysis of the photorefractive response in crystals with shallow
traps to in a sign-alternating, square-wave electric field are presented. The numerical …