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Proceedings Paper

High-performance 2D MWIR Hg1-xCdxTe array operating at 220K
Author(s): Neil T. Gordon; Chris L. Jones; David J. Lees; Chris D. Maxey; Tim S. Phillips; Les G. Hipwood; Paul C. Haynes; Rose A. Catchpole
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Paper Abstract

Infrared detectors based on Hg1-xCdxTe and grown by the MOVPE process can be designed to have very low dark currents, even for temperatures above 200K. These low dark currents are compatible with achieving background-limited performance at a temperature of 200K in f/2. However, in practice the detectors suffer from high 1/f noise. In this paper, a novel approach is explored in which most of the low frequency noise can be eliminated by operating the arrays at near zero bias. Using this technique, imaging arrays have been demonstrated at temperatures up to 220K giving a NETD of around 60mK in f/2.

Paper Details

Date Published: 30 August 2004
PDF: 7 pages
Proc. SPIE 5406, Infrared Technology and Applications XXX, (30 August 2004); doi: 10.1117/12.544485
Show Author Affiliations
Neil T. Gordon, QinetiQ Ltd. (United Kingdom)
Chris L. Jones, BAE SYSTEMS Infra-Red Ltd. (United Kingdom)
David J. Lees, QinetiQ Ltd. (United Kingdom)
Chris D. Maxey, BAE SYSTEMS Infra-Red Ltd. (United Kingdom)
Tim S. Phillips, QinetiQ Ltd. (United Kingdom)
Les G. Hipwood, BAE SYSTEMS Infra-Red Ltd. (United Kingdom)
Paul C. Haynes, QinetiQ Ltd. (United Kingdom)
Rose A. Catchpole, QinetiQ Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 5406:
Infrared Technology and Applications XXX
Bjorn F. Andresen; Gabor F. Fulop, Editor(s)

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