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 benefits of a direct visualization of space-charge grating buildup are described. The
visualization is carried out by a simple repetitive computer program, which simulates the …

The sign of the majority photocarriers in semi-insulating iron-doped InP and undoped GaAs
containing EL2 centres illuminated at 1.06? m is unambiguously determined from the …

We consider phase conjugation via degenerate four-wave mixing in photorefractive crystals
when more than one grating mechanism is operative. A method for exact solution of the …

The polarization dependence of two-wave mixing for two common crystal orientations is
described and theoretical and experimental results given. The direction of energy exchange …

The photorefractive two-wave mixing gain coefficient Γ of GaAs: Cr and InP: Fe, cut with
different crystallographic orientations, was determined using a cw Nd: YAG (neodymium …

Exact solution of two-wave coupling for photorefractive and photochromic gratings in
photorefractive materials Page 1 Volume 79, number 5 OPTICS COMMUNICATIONS 1 …

The photorefractive effect in 4 3 m crystals shows specific symmetries in its dependence
upon wave polarizations and crystal orientation. Theoretical predictions and experimental …

We have developed an approximate analytic expression of two wave mixing for absorption
and phase gratings in photorefractive materials taking into account self-diffraction effect of …

An expression for the gain in photorefractive two-wave mixing when radio-frequency (rf)
electric fields are applied to the material has been derived and compared with experiments …