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

It is shown that weakly damped space-charge waves exist in photorefractive crystals with a
sufficiently large lifetime–mobility product. The dispersion law, the damping constant, and …

We investigate experimentally the fundamental characteristics of space-charge waves
excited in a photorefractive crystal of Bi_12SiO_20. Features such as their transient rise and …

In this chapter, the standard model accounting for the photorefractive nonlinearity in a
material is presented. The mathematical formalism of the rate equations has been …

We investigate the dispersion law (relationship between Ω k and K) of photorefractive waves
using a new experimental method based on the excitation of photorefractive waves by a …

The conditions for the existence and the main characteristics of weakly damped space-
charge waves are investigated for photorefractive ferroelectrics. These conditions are …

Using a new experimental geometry, we have proved for the first time that the generation of
spatial subharmonic gratings in photorefractive crystals is not dependent on optical …

We present a theoretical model of photorefractive parametric oscillation that covers, for the
first time, to our knowledge, the occurrence of the whole spectrum of parametric processes …

FORWARD WAVE INTERACTIONS IN PHOTOREFRACTIVE MATERIALS Page 1 Prog. Qum.
Ekcrr. 1994, Vol. 18, pp. 377450 Copyright 0 1994 Elscvier Science Ltd Primed in Great Britain …

We present an analysis of what is called parametric oscillation in photorefractive media. It is
shown theoretically that when a running grating and a constant electric field are applied to a …