Photorefractive materials combine photoconductive and electro-optic properties: light affects
their electrical conductivity; their optical properties (refractive index, etc.) are affected by …

Measurements and theoretical calculations are presented for the photorefractive effect in
three semi-insulating semiconductors (GaAs: EL2, InP: Fe, and CdTe: V) using 29-psec …

We extend the z-scan technique to provide for measurements of the sign and the magnitude
of all the independent components of χ^(3) for isotropic and cubic-symmetry materials. This …

Nanosecond transmission to total internal reflection switching has been demonstrated using
a thin absorbing film of carbon microparticles suspended in ethanol. The switching results …

A novel transient-grating geometry, which is nondegenerate, copropagating, phase
matched, and polarization sensitive, is used to isolate and measure independently the …

We report on the observation of a photorefractive effect with picosecond pulses in a material
that has little or no midgap absorption (less than 0.1 cm− 1). We model our data using rate …

The photorefractive nonlinearity associated with the Dember space-charge field between
electrons and holes produced by two-photon absorption is unambiguously isolated and …

Hot-carrier enhancement of photorefractive space-charge fields in zinc-blende semiconductors
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Abstract Effects of crystal orientation which gives rise to parallel and cross polarization
coupling have been investigated in degenerate four-wave mixing in absorbing semi …

Combined effects of cross and parallel coupling have been investigated in the case of
contradirectional two-wave mixing in an absorbing photorefractive crystal. Nonlinear …