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Proceedings Paper

Recent advances in negative luminescent technologies
Author(s): Stuart J. Smith; Mary K. Haigh; Neil T. Gordon; James W. Edwards; David J. Hall; Alan J. Hydes; Andrew Graham; Jean Giess; Janet E. Hails; Geoffrey R. Nash; Tim Ashley
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Paper Abstract

Negative luminescent (NL) devices, which to an IR observer can appear colder than they actually are, have a wide range of possible applications, including use as modulated IR sources in gas sensing systems and as thermal radiation shields in IR cameras. A further important use would be a calibration source for IR focal plane arrays where there are many potential advantages over conventional sources, including high speed operation (for multi-point correction) and lower power consumption. Such applications present considerable technological challenges as they require large area uniform devices (>1cm2) with a large apparent temperature range. In this paper we report on recent progress in fabricating large area (1.5cm × 1.5cm) negative luminescence devices from Hg1-xCdxTe grown on silicon substrates using a segmented device architecture.

Paper Details

Date Published: 14 May 2007
PDF: 8 pages
Proc. SPIE 6542, Infrared Technology and Applications XXXIII, 65420Z (14 May 2007); doi: 10.1117/12.723652
Show Author Affiliations
Stuart J. Smith, QinetiQ Ltd. (United Kingdom)
Mary K. Haigh, QinetiQ Ltd. (United Kingdom)
Neil T. Gordon, QinetiQ Ltd. (United Kingdom)
James W. Edwards, QinetiQ Ltd. (United Kingdom)
David J. Hall, QinetiQ Ltd. (United Kingdom)
Alan J. Hydes, QinetiQ Ltd. (United Kingdom)
Andrew Graham, QinetiQ Ltd. (United Kingdom)
Jean Giess, QinetiQ Ltd. (United Kingdom)
Janet E. Hails, QinetiQ Ltd. (United Kingdom)
Geoffrey R. Nash, QinetiQ Ltd. (United Kingdom)
Tim Ashley, QinetiQ Ltd. (United Kingdom)


Published in SPIE Proceedings Vol. 6542:
Infrared Technology and Applications XXXIII
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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