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 …

We demonstrate the possibility of collinear Bragg diffraction in photorefractive Bi_12SiO_20
(BSO) crystals of two incident writing and readout beams of different wavelengths. Two …

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 …

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 …

The polarization properties of diffraction from volume phase gratings in photorefractive
sillenite crystals such as bismuth silicon oxide (Bi_12SiO_20), bismuth germanium oxide …

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 basic physical mechanisms of hologram formation, as well as the major specific features
of Bragg diffraction from anisotropic volume phase holograms recorded in cubic …

We report on the direct measurement of the electrogyration coefficient of Bi 12 Ge O 20
sillenite crystals over the visible spectral range. The coefficient is directly measured on a …

We present the results of a comparative experimental study of optical and photorefractive
properties at room temperature of four nominally undoped, single‐crystal, commercially …

We study the diffraction efficiency of volume phase gratings in Bi 12 GeO 20, when the
grating vector, lying on a (111) plane, is at an angle with respect to the crystallographic …