We examine simultaneous write–read of dynamic photorefractive gratings for arbitrary phase
shifts between index grating and intensity pattern. The nonlinear behavior of diffraction …

We report photorefractive two beam coupling gain coefficients as high as Γ= 19 cm− 1 and
net gains of Γ‐α= 14 cm− 1 in InP: Fe at around 970 nm. This enhancement was achieved by …

We report two-beam coupling experiments at 1.06-μm wavelength using photorefractive
semi-insulating GaAs: Cr in the moving-grating recording mode. The steady-state gain …

The time evolution of the charge carrier density, ionized donor density and space‐charge
field under a sinusoidal light pattern have been calculated by solving numerically the …

A two‐dimensional treatment suitable both for perpendicular (Pockels readout optical
modulators, etc.) and for parallel (image amplifiers, etc.) photorefractive devices is …

This chapter provides a detailed review of theoretical work on the photorefractive effect. The
physical model of photorefractivity used here, which now seems well established by many …

Two coherent light beams can couple in any absorbing material owing to a light-induced
modulation of the material's dielectric constant. In photorefractive crystals the coupling …

Signal Pump Page 1 Slowing Down of Light in Photorefractive Crystals with Beam Intensity
Coupling Reduced to Zero A. Shumelyuk,1 K. Shcherbin,1 S. Odoulov,1 B. Sturman,2 E …

We have measured the strength of the first-derivative peak observed below the band gap in
photorefiectance spectra of semi-insulating GaAs and found that it is correlated with the bulk …

FORWARD WAVE INTERACTIONS IN PHOTOREFRACTIVE MATERIALS Page 1 Prog. Qum.
Ekcrr. 1994, Vol. 18, pp. 377450 Copyright 0 1994 Elscvier Science Ltd Primed in Great Britain …