The diffraction efficiency and energy transfer are investigated in photorefractive Bi 12 SiO 20
crystals (BSO). Dependence on fringe spacing, electric fields, light intensity and rise-time …

Beam coupling effects in an optically active photorefractive crystal of Bi 12 SiO 20 are very
much influenced by the polarization direction of the interacting beams. Analytic expressions …

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 …

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 …

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 …

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 study the polarization properties of volume phase gratings induced in photorefractive
materials that are both optically active and linearly birefringent, such as Bi_12SiO_20 …

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

The dynamic behaviour of both diffracted beams in a two-wave mixing configuration, and
induced photocurrent are investigated with nanosecond light excitation. The photorefractive …

Energy transfer between two beams interfering in an electrooptic Bi 12 SiO 20 crystal is
analyzed as a function of the spatial frequency of the recorded hologram. We report high …