We report the simultaneous combined excitation of the space charge and photoconductivity
gratings in photorefractive Bi 12 Si O 20 and Bi 12 Ti O 20 crystals. The experiments are …

The simultaneous excitation and nonlinear interaction of the space-charge and
photoconductivity gratings are studied experimentally in photorefractive Bi 12 SiO 20 and Bi …

We have measured the temperature dependence of the electron mobility in a single crystal
of photorefractive n-type cubic Bi_12SiO_20 by using a holographic time-of-flight technique …

This is the first characterization of both positive and negative charge carriers as well as deep
traps in any crystal sufficient to predict photorefractive behavior for all beam geometries on …

The time development of a photorefractive grating created by intersecting 30 ps (532 nrn)
beams in a well-characterized Bi12Si020 crystal (in a static field around 1 kV/em) …

A nonlinear interaction of moving space-charge and photoconductivity gratings is
experimentally investigated. In the presence of a dc electric field, a crystal is irradiated with …

We have developed a time-of-flight technique for measuring the mobility of photoexcited
charge carriers in certain crystals exhibiting the electro-optic effect. We used this …

The photoinduced redistribution of charge has been characterized in Bil2GeOZO and
Bi12Si020 crystals using electron spin resonance, thermally stimulated luminescence, and …

We report resonant excitation of space-charge and photoconductivity waves in
semiconductors with shallow energy levels. We predict the appearance of several …

We have found simple analytical solutions for the coupled differential equations that are
commonly used to describe unipolar photoconduction in a homogeneous material with …