We analyze the nonlinear excitation of holographic gratings in a photorefractive crystal
being subject to an alternating electric field and a stationary light interference pattern. The …

A comparative theoretical and experimental analysis of scattering from a doubly periodic
dielectric-mounted frequency-selective surface (FSS) in the mid-infrared (4-12 microns) is …

It is shown that dynamical hologram formation in photorefractive, optically active crystals is
accompanied by polarization and energy exchange. These effects may be used like new …

The spontaneous appearance of hexagon patterns in photorefractive crystals is treated as
mirrorless coherent four-wave mixing oscillation. It is shown experimentally that the system …

Semiconductors as photorefractive materials sensitive to infrared light are among others
advantageous since they have small response times. Typically these time constants are in …

We report an optoelectronic feedback loop suitable for generating noise-free interference
patterns oscillating at arbitrary waveforms. The technique allows controlling the frequency …

We report on the nonlinear relation between the resonance hologram velocity and the
recording light irradiance in fringe-locked running hologram experiments carried out on a …

The coherent oscillation, because of nearly degenerate four-wave mixing in photorefractive
crystals with two types of movable charge carriers, occurs at two spectral lines symmetrically …

We have experimentally studied the dependence of the diffraction efficiency of nonoblique
transmission holograms in a (110)-cut Bi 12 TiO 20 photorefractive crystal on the orientation …

The theoretical analysis of unstationary holographic recording in photorefractive crystals
under an external alternating electric field is presented. In particular, a step-like ac field …