The excitation of a space charge wave in a uniformly illuminated photorefractive crystal by
an applied ac voltage is studied theoretically. A spatial differential equation for the ac …

It is shown theoretically that the space charge field generated by two‐wave mixing in a
photorefractive crystal may have a resonant response when a dc field and a sinusoidal ac …

An energy balance equation is derived with the aid of a partial differential equation
describing the space‐charge field in photorefractive materials. Expressions are found for …

A theory explaining the effects of second harmonic generation and rectification of space-
charge waves (SCWs) in both space and time in photorefractive crystals and semi-insulating …

The effects of overall rectification and second-harmonic generation of space-charge waves
in photorefractive crystals were reliably detected. The effect of overall rectification results in …

The fundamental component of the space-charge field in a photorefractive crystal is studied
in the presence of an applied alternating electric field. A general equation for the amplitude …

The saturation of the fundamental harmonic of the space-charge field is investigated
experimentally in dependence of the contrast m and the amplitude of an external ac and dc …

The second order temporal differential equation, known to describe the space charge field in
the high frequency region, is solved approximately in a closed analytical form. The condition …

The resonance peak characteristic for both the electron-and the hole-photoactive centers in
a Bi 12 TiO 20 photorefractive crystal were detected in a nearly degenerate two-wave mixing …

Space charge fields in photorefractive materials Page 1 INT. J. ELECTRONICS, 1984, VOL.
57, No.1, 125-127 Space charge fields in photorefractive materials L. SOLYMARt, T. WILSONt …