The frequency dependence of the photorefractive effect is considered. The frequencies can
be applied by introducing a temporal phase shift in one of the beams in a two-wave mixing …

Thick holographic refractive index gratings are written in nominally pure and in iron doped
BaTiO 3 crystals. The phase shift between refractive index grating and light pattern is studied …

In general, the application of an electric field to a photorefractive material with optical activity
results in a change in the effective electro-optic coefficient, r eff, which, in turn, alters the …

The process of high-gain image amplification in photorefractive crystals is investigated. We
show that in the regime of large energy transfer, the spatially nonuniform depletion of the …

Dynamic holographic architectures for connecting processors in parallel computers have
been generally limited by the response time of the holographic recording media. In this …

Holographic gratings are recorded in Pb 0.9 La 0.1 (Zr 0.65 Ti 0.35) 0.975 O 3 (PLZT 10: 65:
35) samples. The first and second Fourier order of the refractive index amplitude, its phase …

A photorefractive deconvolution process for optical differentiation of images is suggested.
The problems associated with the intrinsic resolution capabilities of this technique, resulting …

An experimental and theoretical analysis of the two-wave mixing gain in Bi_12SiO_20 with
alternating electric fields applied is presented. The electromagnetic portion of the …

A numerical solution to the band transport equations is presented, which is quite general,
and predicts the behaviour of photorefractive materials in the saturation limit with a moving …

The transients in photorefractive two-wave mixing are investigated under the condition when
the electron generation time is comparable with the dielectric relaxation time. It is shown that …