Accession Number : ADP006787

Title :   All-Optical Associative Memory Based on a Nonresonant Cavity with Image Bearing Beams,

Corporate Author : EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZURICH (SWITZERLAND)

Personal Author(s) : Ingold, M. ; Duelli, M. ; Guenter, P. ; Schadt, M.

Report Date : 22 MAY 1992

Pagination or Media Count : 4

Abstract : A new configuration of an all-optical, nonlinear holographic associative memory is investigated. A multistable, content-addressable cavity is used, that performs image comparison, discrimination and read-out in one step. The required nonlinear processes are obtained by using a combination of a photorefractive KNbO3 crystal and a nematic liquid crystal (NLC) in a feedback configuration with several beams.

Descriptors :   *NONLINEAR OPTICS, *HOLOGRAPHY, *OPTICAL STORAGE, CAVITIES, COMPARISON, CONFIGURATIONS, CRYSTALS, DISCRIMINATION, FEEDBACK, IMAGES, LIQUID CRYSTALS, MEMORY DEVICES, OPTICAL IMAGES, POTASSIUM COMPOUNDS, IMAGE PROCESSING, REFRACTION, SYMPOSIA.

Subject Categories : Optics
      Cybernetics

Distribution Statement : APPROVED FOR PUBLIC RELEASE