We investigate theoretically the interaction of two or more beams intersecting at a small
angle in a photorefractive crystal with a local type of holographic recording. All necessary …

The photorefractive coupling of two polarized electromagnetic waves in cubic crystals is
considered. Exact solutions for the cross-polarization coupling are obtained. Both …

Experimental investigations are presented of cross-polarization two-beam coupling in a
photorefractive GaAs crystal, in which two mutually coherent laser beams with the same …

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 …

Phase-conjugate wavefront generation via real-time holography in degenerate four-wave
mixing experiments in photorefractive crystals Bi 12 GeO 20 is presented. The phase volume …

A theoretical analysis of nondegenerate four-wave mixing in a one-grating configuration is
presented. Analytical expressions for the amplitudes and phases of all four interacting …

Different kinds of real-time coherent optical image processing, such as edge enhancement
[1, 2], correlation and convolution [3, 4], subtraction and addition [5] have been performed in …

Equations that describe the steady-state dependence of the coherent-coupling properties of
photorefractively induced refractive-index gratings on high-speed periodic biphase …

The theory for two-wave mixing in photorefractive InP: Fe under a dc electric field with both
electron–hole intrinsic resonance and a moving grating is developed. An extended …

We have used a 20-kHz ac square-wave electric field to enhance the beam-coupling gain
and the degenerate four-wave mixing reflectivity of photorefractive GaAs at 1.06 μm. The …