Refractive index grating recording is achieved in the infrared in a nematic liquid crystal
placed between semiconductor CdTe substrates. Light-induced space-charge field created …

The grating translation technique (GTT), which employs a momentary shift of light fringes
during holographic recording, is a powerful tool for characterization of nonlinear materials …

The introduction of certain electronic feedback loops into photorefractive wave-coupling
schemes makes them noise free and leads to dramatic changes of the whole nonlinear …

An active stabilization of photorefractive two-wave coupling by means of an electronic
feedback loop has been used extensively during recent years in transmission geometry. It …

We report on the nonlinear relation between the resonance hologram velocity and the
recording light irradiance in fringe-locked running hologram experiments carried out on a …

Doping ions and OH− groups absorption bands spatial profiles were investigated for the
case of congruent LiNbO 3 single crystal grown by Czochralski technique. Doping was …

This work presents a holographic method based on active feedback techniques for
determining the sign of the dominant charge carriers in photorefractive materials. A two-step …

We show, using the symmetry properties of the coupled-wave equations for the transmission
and reflection geometries, that any readout characteristic of dynamic spatially nonuniform …

We investigate analytically and numerically the influence of the type of the photorefractive
nonlinear response on the periodic states (attractors) which occur during feedback …

We investigate the spatial structure of dynamic index and light gratings which arise during
feedback-controlled photorefractive beam coupling with ultimate diffraction parameters. It is …