Using a two-level model of optical transitions, the positive feedback effect observed in the
presence of absorption in four-wave mixing in photorefractive crystals has been determined …

This paper dealt with the experimental observation of enhanced four-wave mixing in BSO.
The method used involves sinusoidal phase shift in one of the pump beams. Due to this …

We show analytically and numerically that the refractive-index gratings produced by the
photorefractive effect need not be of the same periodicity as the driving light intensity. Even …

A new method of measuring Bragg diffraction more accurately is introduced. When three
formulas of photorefractive grating formation are given as functions of intensity modulation …

In holographic experiments many photorefractive crystals show refractive-index changes
much smaller than one would expect from the known electro-optic coefficients and space …

The effect of absorption on double phase conjugate mirror (DPCM) in photorefractive
materials is studied. An analytical condition for the threshold is derived; in particular the …

Time-resolved buildup of a photorefractive grating induced in Bi12SiO20 by picosecond light
pulses clickable element to expand a topic LOGIN OR CREATE ACCOUNT PRISM …

The time evolution of the charge carrier density, ionized donor density and space‐charge
field under a sinusoidal light pattern have been calculated by solving numerically the …

A two-level model of recording and readout of holographic gratings in photorefractive
crystals proposed by Rustamov has been developed for the nonstationary case. Based on …

We present a model describing the formation of a photorefractive grating in the presence of
photorefractively inactive space-charge modulation. The treatment is based on standard …