Accession Number : ADD006625

Title :   Photovoltaic-Ferroelectric Correlation Devices.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Brody,Philip S

Report Date : 21 Nov 1978

Pagination or Media Count : 7

Abstract : This patent discloses a photovoltaic-ferroelectric correlation device for both optical pattern correlation and signal correlation. A remanent polarization pattern is induced in a photovoltaic-ferroelectric layer, and when irradiated with an illumination pattern, the photocurrent produced at each point of the layer is proportional to the product of the remanent polarization at that point and the illumination at that point. The sum of the point currents produced, or the short circuit photocurrent of the device, is proportional to the integral of the products, which is the correlation of the two patterns. (Author)

Descriptors :   *Patents, *Photodetectors, *Optical correlators, Photovoltaic effect, Ferroelectricity, Illumination, Polarization, Correlation techniques, Sandwich construction

Subject Categories : Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE