Optical memory disks in optical information processing

Demetri Psaltis, Mark A. Neifeld, Alan Yamamura, Seiji Kobayashi

Research output: Contribution to journalArticlepeer-review

67 Scopus citations

Abstract

We describe the use of optical memory disks as elements in optical information processing architectures. The optical disk is an optical memory device with a storage capacity approaching 1010 bits which is naturally suited to parallel access. We discuss optical disk characteristics which are important in optical computing systems such as contrast, diffraction efficiency, and phase uniformity. We describe techniques for holographic storage on optical disks and present reconstructions of several types of computer-generated holograms. Various optical information processing architectures are described for applications such as database retrieval, neural network implementation, and image correlation. Selected systems are experimentally demonstrated.

Original languageEnglish (US)
Pages (from-to)2038-2057
Number of pages20
JournalApplied optics
Volume29
Issue number14
DOIs
StatePublished - May 10 1990

Keywords

  • Computer-generated holograms
  • Optical computing
  • Optical memory disk
  • Spatial light modulator

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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