We report high-reflectivity four-wave mixing in photorefractive GaAs: Cr crystals at 1.06 μm
using a nearly degenerate interaction with an externally applied dc electric field (moving …

We investigate the dynamics of four-wave mixing processes in photorefractive crystals in
paraxial approximation, assuming the phase-conjugation condition. By applying an external …

We investigate the dynamics of multiple two-wave mixing in photorefractive materials. This is
the first time to our knowledge that a study of the dynamics of many pairs of two-wave mixing …

We analytically solve the steady-state coupling equations of photorefractive two-wave
mixing with a rapidly phase modulated signal for an arbitrary complex coupling constant …

Partial differential equations are set up and solved partly analytically, partly numerically for
the spatial and temporal variation of the amplitudes and phases of the four beams …

A two‐dimensional model for the self‐pumped phase conjugation in a photorefractive crystal
is presented. In the model, no internal reflections at a corner of the crystal are explicitly …

Theoretical and experimental studying of the vectorial wave mixing in the photorefractive
crystal in the reflection geometry without applying an external electric field is presented. We …

Two-wave mixing gain in photorefractive GaAs: Cr using the moving grating technique has
been measured. The results compare well to theory when a value of τ di/τ 2 measured by …

We show theoretically that the group velocity of light pulses can be reduced significantly by
use of the steep dispersion properties of the phase coupling effect in the photorefractive two …

An analysis of symmetric three-wave forward mixing in a cubic crystal with an applied ac
external electric field is carried out for the case of a strong central wave and weak side …