In the demonstrations of slow light in photorefractive (PR) materials, the delays are only
reported for long pulse durations (ms to s) that are in discrepancy with typical ns-pulse …

We experimentally observe an ultralow effective group velocity of 0.9 cm/s of light pulses
using the two-wave mixing process in an Sn_2P_2S_6 (SPS): Te crystal at a visible …

The ability to delay short light pulses is a promising solution for all-optical
telecommunications, but suffers from a large distortion of the delayed pulse as a …

Light pulse group velocity manipulations due to the specific dispersion of a medium (so-
called “slow” and “fast” light phenomena) can be obtained on the basis of several …

We study theoretically the effects of pulse slowdown and speedup in ferroelectric
Sn_2P_2S_6 possessing a self-compensating photorefractive response. It is shown that …

The beam fanning naturally occurring in a photorefractive crystal is shown to slow down a
single light pulse at room temperature. Slow light is demonstrated for both visible and …

We investigate theoretically the main elements of manipulation of light pulses—strong
nonlinear slowing down, trapping, and release on demand—in photorefractive nonlinear …

Recently precise control on the group velocity of light pulses has attracted much attention
from both fundamental and practical view points. Many resonant effects, such as …

Slowdown of Gaussian “dark pulses” in photorefractive crystal using a two-wave mixing
method is shown at room temperature. In agreement with our theoretical model, the …

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 …