Analytic expressions are derived for second-and third-order space-charge fields for a
moving intensity pattern and arbitrary field strengths. The dependence on the spatial …

The benefits of a direct visualization of space-charge grating buildup are described. The
visualization is carried out by a simple repetitive computer program, which simulates the …

The nonlinear differential equations describing the response of photorefractive material to a
moving sinusoidal intensity pattern that permits large modulation depth are solved by a …

Rigorous coupled-wave reflection grating analysis and Kukhtarev s equations have been
solved in the time domain to determine the optical intensity, electron density, and dielectric …

The time-dependent, nonlinear Kukhtarev equations are numerically solved to determine the
temporal and spatial dependence of the space-charge field for a sinusoidal intensity profile …

The photorefractive response with moving gratings is investigated both numerically and
experimentally under varied fringe-velocity and modulation-depth (m= 0.002 to m= 1) …

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

A general analytical model is developed for analysis of the diffraction properties of layered
structures of photorefractive gratings. With this model a simple closed-form expression is …

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

The frequency dependence of the photorefractive effect is considered. The frequencies can
be applied by introducing a temporal phase shift in one of the beams in a two-wave mixing …