A two-beam coupling interaction of an information-bearing beam with a copy of itself in a
photorefractive medium changes the spatiotemporal nature of the beam. We analyze the …

We analyze reflexive photorefractive coupling of an information-bearing beam carrying
several distinct spatiotemporal features, with emphasis on the coupling-induced change in …

Photorefractive two-beam coupling with reduced spatiotemporal coherence is investigated
both theoretically and experimentally. Limited spatiotemporal coherence results in spatially …

The effect of partial spatiotemporal coherence in photorefractive two-beam coupling is
studied theoretically and experimentally. Coupled-wave equations and a beam-propagation …

An operator approach to two-beam coupling in photorefractive media for which each beam
is composed of information that varies in both space and time reduces the problem to a …

We solve the problem of the transmission of time modulated signals in a two-beam coupling
photorefractive set-up using an absorbing material. We obtain an analytical expression that …

We propose and analyze a new type of phase conjugation between counterpropagating
beams in photorefractive materials based on diffraction from transmission gratings only. This …

We demonstrate a new type of scattering process induced by two mutually incoherent
beams in photorefractive crystals. The input beams may be of different colors. Dark and …

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We demonstrate that two-wave mixing of partially coherent light beams inside a medium with
an inertial nonlinear response allows one to increase the coherence substantially. An …