Recent advances in negative luminescent technologies

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

doi:10.1117/12.723652

14 May 2007 Recent advances in negative luminescent technologies

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

Author Affiliations +

Proceedings Volume 6542, Infrared Technology and Applications XXXIII; 65420Z (2007) https://doi.org/10.1117/12.723652
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

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 Hg_1-xCd_xTe grown on silicon substrates using a segmented device architecture.

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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, and Tim Ashley "Recent advances in negative luminescent technologies", Proc. SPIE 6542, Infrared Technology and Applications XXXIII, 65420Z (14 May 2007); https://doi.org/10.1117/12.723652

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