We investigate experimentally the fundamental characteristics of space-charge waves
excited in a photorefractive crystal of Bi_12SiO_20. Features such as their transient rise and …

Space-charge waves have been investigated in the sillenite-type crystals Bi12SiO20,
Bi12GeO20, and Bi12TiO20. For the experiments, oscillating light patterns and the effects of …

A new phenomenon associated with a nonlinear interaction of optically excited space
charge waves has been discovered in photorefractive crystals of the sillenite family. This …

A new experimental method for the study of resonance effects and space-charge wave
excitation in photorefractive Bi12SiO20 crystals by using a combination of frequency …

We report a direct observation of space charge waves in photorefractive crystals with point
group 23 (sillenites) based on their penetration into an area with uniform light illumination. It …

We investigate experimentally and theoretically the dependence of the amplitude of the
spatial fundamental grating, created by a pair of coherent light beams while using the …

We consider the photorefractive response in a sillenite crystal with shallow traps when a
square-wave applied field is used. The numerical results give the dependences of two-beam …

It is shown that weakly damped space-charge waves exist in photorefractive crystals with a
sufficiently large lifetime–mobility product. The dispersion law, the damping constant, and …

Recent analytical results in the frame of photorefractive spatial-soliton propagation are
exploited to derive a novel scheme for the investigation of space-charge field formation in …

The effects of overall and spatial rectification of optically excited space charge waves (SCW)
in photorefractive Bi12TiO20 crystals have been studied for the first time. The whole set of …