The time-dependent, nonlinear Kukhtarev equations are numerically solved to determine the
temporal and spatial dependence of the space-charge field for a sinusoidal intensity profile …

We demonstrate a novel way to analyse carrier recombination and transport processes in
photorefractive semiconductors via the exposure characteristics of light induced diffraction …

In a photorefractive Bi 12 SiO 20 crystal with high applied electric ac field of square-wave
shape a fast two-wave coupling response (less than 1 s) and a slow hologram readout …

We have found simple analytical solutions for the coupled differential equations that are
commonly used to describe unipolar photoconduction in a homogeneous material with …

The analytic expressions for the first three higher-order harmonics of the space-charge field
versus time are obtained by use of the hopping model of Feinberg [J. Appl. Phys. 51, 1297 …

Starting from the three-dimensional version of a standard photorefractive model (STPM), we
obtain a reduced compact set of equations for an electric field based on the assumption of a …

It is shown that a moving intensity grating in a photorefractive crystal with a sufficiently large
lifetimemobility product can give rise to an instability against excitation of weakly damped …

The space-charge-field amplitude inside photorefractive crystals was evaluated using three
different experimental techniques:(i) two-wave mixing gain measurements,(ii) direct phase …

The validity of the commonly used time-dependent wave equation describing the
propagation of screening one-dimensional solitons in photorefractive materials is discussed …

Light-induced charge transport processes are essential for photorefractive effects in
electrooptic crystals. Charge driving forces, charge transport models and experimental …