The Acousto-Photorefractive Effect in LiNbO3.

Abstract

The acousto-photorefractive memory storage effect in lithium niobate crystal and its application to a memory correlator device were studied in a series of experiments. The effect is a semipermanent index of refraction variation in a LiNbO3 surface acoustic wave (SAW) substrate delay line produced by the interaction of a short, intense pulse of laser illumination and a SAW traveling down the length of the line. The experiments show that the storage is the result of an optical photorefractive effect and not, at least predominantly, a result of a direct interaction between an electric field associated with the acoustic wave and charge carriers.

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1983
Accession Number
ADA127382

Entities

People

  • Emanuel Katzen
  • Nick Karayianis
  • Philip S. Brody

Organizations

  • Harry Diamond Laboratories

Tags

DTIC Thesaurus Topics

  • Acoustic Waves
  • Charge Carriers
  • Delay Lines
  • Electric Fields
  • Lithium Niobates
  • Piezoceramics
  • Refraction
  • Refractive Index
  • Surface Acoustic Wave Devices
  • Surface Acoustic Waves
  • Waves

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Materials Science and Engineering.
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy