Nonunidirectional two-beam interaction in photorefractive bismuth silicate in an alternating
electric field Page 1 Nonunidirectional two-beam interaction in photorefractive bismuth silicate in …

Two beams incident upon a bismuth silicon oxide crystal are shown to give rise to a
subharmonic halfway between the incident beams and to an oscillating beam in a ring …

During the erasure of a photorefractive grating in Bi12SiO20, the space-charge field moves
at a constant velocity and its amplitude exponentially decays. The experiment confirms that …

An experimental investigation of the electric field in the bulk of a Bi_12SiO_20 crystal is
carried out, and a two-region model is developed that can account for the buildup of …

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 …

Self-confinement of light beams at the wavelength of 633 nm is presented for the first time in
Bi 12 SiO 20 (BSO) photorefractive crystals. The 633 nm wavelength is slightly absorbed in …

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

In a photorefractive Bi 12 SiO 20 crystal with high applied electric ac field of square-wave
shape a fast two-wave coupling response (less than 1 s) and a slow hologram readout …

We consider in detail the piezoelectric properties and the optical activity of (110)-cut cubic
photorefractive crystals with respect to the optimization of two-beam coupling. An expression …

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