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Proceedings Paper

Recent Advances In Silicide Detectors
Author(s): I. J. Spiro; F. D. Shepherd
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Paper Abstract

Early attempts to extend staring-mode sensing into the thermal infrared spectrum failed, because the resulting imagery was dominated by spatial pattern noise. The source of this noise was modulation of the infrared background by local variations in sensor responsivity. In 1973, use of internal photoemission from silicide Schottky barrier arrays was proposed as a means of achieving the photoresponse uniformity necessary to obtain useful thermal imaging capability. In the next two year, silicide tube and solid state imaging devices were demonstrated. Tube development was abandoned in 1975. Solid state efforts were directed towards extension of photo-response to longer wavelengths and fabrication of large scale arrays with small, high fill factor, pixels. Cut-off wavelengths have evolved from 2 μm to 10 μm and array sizes from 1 x 64 to 512 x 512 since that time. Current silicide cameras have sensitivity comparable with the best scanning systems. This paper will describe recent advances in silicide sensors and project future technology trends.

Paper Details

Date Published: 5 July 1989
PDF: 8 pages
Proc. SPIE 1038, 6th Mtg in Israel on Optical Engineering, (5 July 1989); doi: 10.1117/12.951035
Show Author Affiliations
I. J. Spiro, The Aerospace Corporation (United States)
F. D. Shepherd, Rome Air Development Center (United States)


Published in SPIE Proceedings Vol. 1038:
6th Mtg in Israel on Optical Engineering
Rami Finkler; Joseph Shamir, Editor(s)

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