Abstract

We will discuss the use of non-linear optical materials for the implementation of memories and the use of such memories in image processing. Specifically, we will describe holographic 3-D disks constructed with photorefractive crystals or photopolymers. We will discuss how the material properties affect the performance of such memories and we will describe dynamic copying methods that can provide non-destructive read-out and selective erasure and replacement of information. Finally, we will describe the implementation of a face recognition system using the 3-D disk.

© 1992 Optical Society of America