Holographic implementations of neural networks using photorefractive crystals and vertical-
cavity surface-emitting microlaser arrays are described. This paper concentrates on the …

A compact photorefractive optical novelty filter is presented. Its two main components, the
nonlinear photorefractive crystal and the spatial light modulator, are characterized. It is …

Since the discovery of the photorefractive effect in LiNbO3 two decades ago, considerable
effort has been devoted to understanding and optimizing the phenomenon for a variety of …

Degree: Dr. Sc. Nat. DegreeYear: 1992 Institute: Eidgenoessische Technische Hochschule
Zuerich (Switzerland) Spatial light modulators are key components in optical image …

Techniques on slow and fast lights are of fundamental interest because they are targeted
toward the understanding of physical laws for light-pulse propagation [1] as well as …

A compact optical novelty filter based on two-wave mixing in a non-linear photorefractive
crystal is implemented. The performances of the crystal, a cobalt doped barium titanate …

Summary form only given. We have measured the effective trap density, the number of active
trap levels, the sign of the dominant charge carrier, and the photorefractive two-beam …

The nonlinear phenomena of signal beam saturation, pump beam depletion, and optically
controlled coupling coefficient of two-beam interaction in photorefractive materials are …

Summaries of papers are included that address the following subjects: Photorefractive
Materials, Effects, and Devices; Integrated Photonics Research; Nonlinear Guided Wave …

In the recent year, the photorefractive effect has become the nonlinear mechanism of choice
for highly parallel information processing with low power lasers. The use of these nonlinear …