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Proceedings Paper

Uncooled infrared detectors and focal plane arrays
Author(s): Meimei Z. Tidrow; William W. Clark III; W. Tipton; R. Hoffman; William A. Beck; S. C. Tidrow; D. N. Robertson; Herbert K. Pollehn; K. R. Udayakumar; Howard R. Beratan; Kevin L. Soch; Charles M. Hanson; Marc Wigdor
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Paper Abstract

Over the past several years, uncooled IR detectors and focal plane arrays have been rapidly developed. Impressive progress has been made in both resistive microbolometers and pyroelectric thin-film detectors with noise equivalent temperature differences projected to be 10 to 20 mK with F/1 optics for such structures. Noise equivalent temperature of 50 mK bulk pyroelectric detectors and thin film resistive microbolometers are already demonstrated and in production. Other novel schemes, such as bimaterial capacitors, are also promising for uncooled IR detection. The US Army Research Laboratory is involved in developing ferroelectric materials to take advantage of the pyroelectric properties. The goal is to develop crystal oriented thin films to further improve detector performance. In this presentation, the operating principle of resistive microbolometers and pyroelectric detectors, and recent progress of uncooled RI focal plane arrays are discussed. In addition, the uncooled RI detector program at the Army Research Laboratory, that includes research facilities for and research efforts toward uncooled detectors and focal plane arrays is presented.

Paper Details

Date Published: 11 August 1998
PDF: 10 pages
Proc. SPIE 3553, Detectors, Focal Plane Arrays, and Imaging Devices II, (11 August 1998); doi: 10.1117/12.318098
Show Author Affiliations
Meimei Z. Tidrow, Army Research Lab. (United States)
William W. Clark III, Army Research Lab. (United States)
W. Tipton, Army Research Lab. (United States)
R. Hoffman, Army Research Lab. (United States)
William A. Beck, Army Research Lab. (United States)
S. C. Tidrow, Army Research Lab. (United States)
D. N. Robertson, Army Research Lab. (United States)
Herbert K. Pollehn, Army Research Lab. (United States)
K. R. Udayakumar, Raytheon Systems Co. (United States)
Howard R. Beratan, Raytheon Systems Co. (United States)
Kevin L. Soch, Raytheon Systems Co. (United States)
Charles M. Hanson, Raytheon Systems Co. (United States)
Marc Wigdor, Nichols Research Corp. (United States)

Published in SPIE Proceedings Vol. 3553:
Detectors, Focal Plane Arrays, and Imaging Devices II
Pingzhi Liang; Marc Wigdor; William G. D. Frederick, Editor(s)

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