We discuss the ever-expanding applications of photorefractive materials. Recent
demonstrations include the use of the photorefractive crystals barium titanate and strontium …

The facility to control light with light is becoming a key function for advanced photonics
architectures. The photorefractive effect is an optical nonlinearity that allows two or more …

I describe in this thesis various techniques of optical signal processing using photorefractive
BSO and BaTiO 3 crystals. Operations of contrast manipulation, motion detection and …

Current interest in the nonlinear optical properties of photorefractive materials stems from
the fact that they are potential components in the design of parallel optical logic architecture …

Applications and properties of nonlinear optical materials were studied, especially
photorefractive crystals. A summary includes eight areas of inquiry:(1) demonstration of a …

In recent years, photorefractive materials have been investigated extensively as they apply
to dynamic holography, light amplification, optical phase conjugation, optical signal …

If a single laser beam is incident on a photorefractive crystal of barium titanate, a phase-
conjugate beam can emerge. 1 Nature seems to have a proclivity for producing the phase …

The Fifth Topical Meeting on Photorefractive Materials, Effects, and Devices was held in
June 1995 at Estes Park, Colorado. It has become traditional to devote a special issue of the …

Image addition and subtraction in real time are very useful techniques for image processing,
permitting the compilation of composite images from a number of separate inputs via …

We present a two-beam coupling configuration in photorefractive BaTiO_3 that provides a
low-noise amplification of the signal to be detected. A two-wave mixing gain of 100 is …