We review the conditions of high gain in wave-mixing experiments with photorefractive Bit
2Si020 crystals. These interactions are based on the recording of a moving interference …

The amplification of the input signal beam in two-wave mixing experiments with
photorefractive Bi 12 SiO 20 crystals is achieved when an additional phase shift is …

The polarization properties of the volume gratings in photorefractive B 12 SiO 20 crystals
permit to increase the contrast and signal to noise ratio in the image plane of a large size …

Large values of the exponential gain coefficient Γ are obtained (Γ≂ 8–12 cm− 1) when
recording with a moving grating in photorefractive BSO crystals (nearly degenerate two …

Phase-conjugate beam reflectivity in photorefractive Bi_12SiO_20 (BSO) crystals is
analyzed as a function of the following parameters involved in the four-wave mixing …

We consider non-degenerate two-wave mixing in photorefractive Bi 12 SiO 20. It is shown
theoretically that the presence of absorption and optical activity in the photorefractive media …

The energy transfer between two beams (signal and reference, respectively) writing a
dynamic-volume hologram in photorefractive BSO crystals is applied to the image …

We propose and demonstrate a technique for suppressing the optical noise of the
photorefractive amplifiers that exhibit a sharp gain resonance around an optimum pump-to …

The steady-state beam-coupling gain during two-wave mixing in photorefractive materials
has been analyzed in the strong nonlinear regime (high modulation depths). Numerical …

We report a new nearly degenerate two‐wave mixing interaction in photorefractive
Bi12SiO20 crystals in which the signal beam is time modulated at high frequency. The beam …