Aa optical amplifier is a device where the coherent light beam intensity at the output exceeds
that at the input. A quantum amplifier generally contains on active medium where a …

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 …

A new technique that permits the selective steady-state continuous detection of phase
(photorefractive) or amplitude (photochromic) effects in two-wave mixing experiments is …

The mechanism of the photorefractive grating recording and erasure in electrooptic crystals
is discussed in detail in TAP61. We will thus restrict this section to the presentation of the …

In order to obtain the maximum diffraction efficiency, holograms recorded in a
photorefractive crystal must be replayed by a readout beam incident at the correct angle …

The instability of a spatial subharmonic grating during photorefractive hologram recording is
investigated theoretically. It is shown that such instability arises in crystals if the electron drift …

The oscillation intensity of a semilinear photorefractive oscillator with reflection gratings is
calculated for different cavity losses, different pump intensity ratios and different crystal …

It is shown that a moving intensity grating in a photorefractive crystal with a sufficiently large
lifetimemobility product can give rise to an instability against excitation of weakly damped …

Equations for the grating space-charge density and concentration of free carriers induced by
a standing light wave in an anisotropic photorefractive crystal are derived and solved. The …

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 …