The nonequilibrium occupation of multiple defect states in inhomogeneously illuminated
crystals is demonstrated to have dramatic and previously unexpected consequences for the …

The steady-state and dynamic behavior of absorption and phase gratings in semi-insulating
GaAs and InP have been studied by four-wave mixing. These measurements permit …

The time responses of the photorefractive effect in semi-insulating InP doped with Fe and
CdTe doped with In are measured. Using microjoule infrared pulses, gratings can be written …

We present a new model, which incorporates both temperature and electron–hole effects, for
two-beam coupling in photorefractive semiconductors under an external dc field E_0. We …

Defect energy levels within the band gaps of semiconductor crystals can strongly influence
electronic and optical properties. While many techniques exist that can characterize and …

We describe a new method for photorefractive response time measurement in fast
photorefractive crystals based on continuous phase modulation in two-wave mixing. We …

We extend the standard model of four-wave mixing in photorefractive crystals to the case
where the Bragg-condition is broken by a slight departure from degeneracy. Our analytical …

Photorefractive materials have been assuming ever increasing prominence in the non-linear
optics field due to their unique capability for displaying strong non-linear effects at milliwatt …

The photorefractive recording dynamics of two-beam coupling in semi-insulating
semiconductors by beams with slightly different frequencies are studied theoretically and …

A microscopic model of the non-steady-state photoelectromotive force excited by a vibrating
interference pattern in a bipolar photoconductor under an external dc electric field is …