Photorefractive materials combine photoconductive and electro-optic properties: light affects
their electrical conductivity; their optical properties (refractive index, etc.) are affected by …

For many applications of slow or stopped light, the delay-time-bandwidth product is a
fundamental issue. So far, however, slow-light demonstrations do not show a large delay …

A photorefractive resonator containing an optical delay line is shown to learn temporal
information through a self-organization process. We present experiments in which a …

We present a photorefractive processor for audio-acoustic signal recognition based on the
time-delay neural network model of Hopfield and Tank [in Neural Models of Plasticity, JH …

We present the results of numerical simulation of a nonlinear optical system with a time-
delayed feedback which exhibits spatio-temporal chaotic states. The model incldues three …

Photorefractive mixing of amplitude-modulated signals clickable element to expand a topic
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This thesis discusses applications of the photorefractive effect in the context of acoustic
signal processing. The devices and systems presented here illustrate the ideas and optical …

Recently artificial inhomogeneous broadening was proposed to expand the bandwidth of
slow light. The point is to independently slow down all harmonic components of the input …

The photorefractive (PR) materials offer the real-time, erasable, high capacity, and parallel
accessible capabilities, that warrant applications to variety of photonics devices. In this …

Acoustic processing of audio and sonar by animals involves the temporal as well as spatial
aspects of an incoming signal. We can presume that a bat, for example, acquires an entire …