The slowing down of light pulses with backward-wave four-wave mixing is analyzed for
photorefractive crystals with different coupling strengths. The conditions are found for which …

A slowing down of light pulses using backward-wave four-wave mixing is achieved in
photorefractive crystals with different coupling strength. The delay and width of the output …

We report on a slowing down of light pulses using degenerate backward-wave four-wave
mixing in a photorefractive crystal. The delay and width of the output pulse for the amplified …

A theoretical and experimental study of the temporal response of photorefractive two-and
four-wave mixing processes is given. We examine the buildup and the decay of the output …

We present and experimentally demonstrate a new method for enhancing the signal-to-
background ratio of two-wave mixing in photorefractive crystals. The method uses a mutually …

We demonstrate a new method of light amplification based on forward four-wave mixing in
photorefractive BaTiO_ 3. A single pump beam of combined (ordinary and extraordinary) …

High-gain pulsed amplification of low intensity continuous-wave optical signals via two-wave
mixing in a photorefractive barium titanate (BaTiOs) crystal is demonstrated. The technique …

We show theoretically that the group velocity of light pulses can be reduced significantly by
use of the steep dispersion properties of the phase coupling effect in the photorefractive two …

We present theory and experiments to show that the efficiency of four-wave mixing in
photorefractive materials can be enhanced by use of optical waves of slightly different …

The influence of the anisotropy of the effective dielectric constant, effective electro-optic
effect, drift mobility, and photoexcitation cross section on the photorefractive two-wave …