An alternative empirical correction function is presented for the space-charge field of the
form ƒ (m)= m/(1+ bm), which simulates the functional form of ƒ (m)=[1− exp (-am)]/a …

The intensity-dependent two-wave mixing gain at large modulation depth is measured in a
BaTiO3 crystal. We derive an expression of nonlinear space-charge field from Kukhtarev's …

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

We apply directly a perturbative expansion to the hopping model of Feinberg. The first three
harmonics of the space‐charge field are presented, considering the contributions from the …

A recently predicted resonant effect for the enhancement of two-wave mixing in
photorefractive materials is investigated. The resonance occurs when the frequency of the …

Recent analytical results in the frame of photorefractive spatial-soliton propagation are
exploited to derive a novel scheme for the investigation of space-charge field formation in …

Two-wave mixing of phase-modulated beams in photorefractive crystals under a dc electric
field is studied both theoretically and experimentally. Based on the vectorial theory of light …

We obtain analytical solution to the slowly varying envelope wave equations describing two-
wave mixing in photorefractive crystals with arbitrary dependence of the gain and absorption …

A frequency-degenerate four-wave polarization interaction in photorefractive crystals is
investigated. This interaction is due to linear and circular photogalvanic currents and …

The complete description of two-wave interaction in photorefractive crystals involves two
sets of differential equations: the materials equations and the field equations, although …