We investigate experimentally and theoretically the dependence of the amplitude of the
spatial fundamental grating, created by a pair of coherent light beams while using the …

The process of hologram recording in a photorefractive crystal in an external dc field is
considered from the point of view of material equations. Conditions are calculated for the …

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 …

We show that a photoconductive crystal, placed in a rapidly alternating ac field and exposed
to nonuniform light, exhibits singularities of the induced space charge and discontinuities of …

Space-charge field in photorefractive materials at large modulation clickable element to
expand a topic LOGIN OR CREATE ACCOUNT PRISM SUBMISSION This website uses …

The effects of overall rectification and second-harmonic generation of space-charge waves
in photorefractive crystals were reliably detected. The effect of overall rectification results in …

Using a new optical configuration free from the influence of photorefractive optical
nonlinearity, we investigate the main characteristics of the spatial subharmonic K/2 excited …

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 …

The instability leading to the appearance of subharmonics in the presence of a square wave
applied field is investigated both theoretically and experimentally. The threshold conditions …

Large values of the exponential gain coefficient Γ are obtained (Γ≂ 8–12 cm− 1) when
recording with a moving grating in photorefractive BSO crystals (nearly degenerate two …