Accession Number : ADD003925
Title : High Electrical Frequency Infrared Detector.
Descriptive Note : Patent Application,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Schoolar,Richard
Report Date : 24 Feb 1977
Pagination or Media Count : 28
Abstract : The invention relates to 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 : *Patent applications, *Infrared detectors, *Photovoltaic effect, Thin films, Single crystals, Semiconductors, Photodetectors
Subject Categories : Infrared Detection and Detectors
Distribution Statement : APPROVED FOR PUBLIC RELEASE