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

A brief review of a band transport model for the photorefractive effect is given. Distinction is
made between the influence of intrinsic material dependent parameters and externally …

We demonstrate a technique by which the amplitudes of the various spatial harmonics of a
holographic grating written in a photorefractive material may be increased with respect to …

The response of photorefractive materials to sinusoidal intensity patterns of high modulation
depths is considered. It is shown that the induced refractive-index response in this regime is …

The steady-state exact solution for the higher harmonic gratings that synthesize the space-
charge field is derived without restrictions within an electron-hole transport model which …

The band transport model describes charge statics and dynamics within photorefractive
materials. Here a steady-state solution is found for the setting in which an arbitrary optical …

The photorefractive band transport model is extended to include magnetic effects. The
Newtonian equation of motion for electrons in the conduction band under combined electric …

The initial holographic recording rate has been analytically studied for a photorefractive thin
slab. The finite thickness is explicitly taken into account by using a two-dimensional …

Charge dynamics in photorefractive materials for the case in which an index grating is
written by interfering light beams is investigated. Of particular interest is the case in which …

Using a two-level model of optical transitions, the positive feedback effect observed in the
presence of absorption in four-wave mixing in photorefractive crystals has been determined …