Real-time Optical Intensity Correlator using Photorefractive BSO and a Liquid Crystal Television.

Abstract

The use of photorefractive Bi12SiO20 (BSO) as a dynamic holographic medium in optical processing systems has been the subject of much activity. Typical operations carried out include edge enhancement, novelty filtering and the correlation of optical signals. However the use of BSO in coherent correlator systems is hindered by positional problems as the crystal -must be inserted at the Fourier plane of the transforming lens(es) to a high degree of accuracy (to within 0.5 % of the focal length of the lens as determined in ref 3).

Document Details

Document Type
Technical Report
Publication Date
May 22, 1992
Accession Number
ADP006738

Entities

Organizations

  • University of Abertay Dundee

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Correlators
  • Crystals
  • Filtration
  • Intensity
  • Liquid Crystals
  • Massachusetts
  • Materials
  • Optical Processing
  • Photorefractive Materials

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Optical Physics and Photonics.