Accession Number : ADD008098

Title :   High Electrical Frequency Infrared Detector.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Schoolar,Richard B

Report Date : 28 Oct 1980

Pagination or Media Count : 17

Abstract : This report describes a thin-film single-crystal infrared detector exhibiting an increased frequency of response. A closed transverse junction, formed by diffusing a central electrode of an impurity rich metal into a lead-salt film epitaxially grown on an insulating substrate, provides an effective optical area in excess of the junction surface. An ohmic contact is spaced apart from the central electrode. Junction capacitance, a limitation upon the electrical response, is diminished by the detector geometry while detectivity is enhanced. In an alternative embodiment the detector may be segmented to provide directional detection.

Descriptors :   *Patents, *Infrared detectors, High frequency, Photovoltaic effect, Quick reaction, Thin films, Single crystals, Heterojunctions, Fabrication, Electric contacts

Subject Categories : Infrared Detection and Detectors
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE