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Proceedings Paper

Multiplexed mid-wavelength IR long linear photoconductive focal-plane arrays
Author(s): James F. Kreider; Mark K. Preis; Peter C. T. Roberts; Larry D. Owen; Walter M. Scott; Charles F. Walmsley; Alan Quin
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Paper Abstract

This paper discusses the successful demonstration of a first in thermal imaging with utilized an inexpensive midwavelength IR (MWIR) linear, focal plane assembly (FPA) comprising a long linear array of lead selenide (PbSe) photoconductors interfaced to an on-focal-plane multiplexer (MUX). The design of this unique IR sensor consisted of a rugged dewar package in which was mounted a reliable, solid state thermoelectric cooler (TEC) coupled with the proven technologies of both the PbSe fabrication process and the complementary metal-oxide- semiconductor (CMOS) multiplexers. This combination of components now provides the system designer with a readily available, cost-effective, second-generation PbSe focal plane assembly for scanning, thermal imaging applications that require high resolution and system performance of NE(Delta) T capability of better than 0.2 degree(s)C.

Paper Details

Date Published: 1 September 1991
PDF: 13 pages
Proc. SPIE 1488, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing II, (1 September 1991); doi: 10.1117/12.45818
Show Author Affiliations
James F. Kreider, Litton Electron Devices Div. (United States)
Mark K. Preis, Litton Electron Devices Div. (United States)
Peter C. T. Roberts, Litton Electron Devices Div. (United States)
Larry D. Owen, Litton Electron Devices Div. (United States)
Walter M. Scott, Litton Electron Devices Div. (United States)
Charles F. Walmsley, Walmsley Microelectronics Ltd. (United Kingdom)
Alan Quin, Walmsley Microelectronics Ltd. (United Kingdom)


Published in SPIE Proceedings Vol. 1488:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing II
Gerald C. Holst, Editor(s)

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