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Proceedings Paper

Uncooled infrared microbolometer arrays for Earth remote sensing
Author(s): Herve Geoffray; Alain Bardoux; Michel Laporte; Jean-Luc Tissot
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Paper Abstract

The recent development of high performance uncooled infrared microbolometer arrays with detection limit (Noise Equivalent Temperature Difference) as low as 50 mK (f/1-60 Hz) offers a new challenge for the design of space instruments for Earth remote sensing. In this paper, we present results obtained on a 256x64 amorphous Silicon microbolometers array and on a 320x240 Vanadium Oxide (VOx) microbolometers array, from electro-optical characterizations performed at Centre National d'Etudes Spatiales. The goal of these measurements is to derive the performances of these arrays in order to study the feasibility of Earth remote sensing instruments using uncooled infrared microbolometer arrays. We find that a detection limit of approximately 0.16 K could be achieved at low spatial resolution, where the VOx microbolometer array is more adapted, due to relatively large time constant (approximately 23 ms). At medium spatial resolution, a detection limit of approximately 0.5 K could be achieved, with the amorphous Silicon microbolometer array.

Paper Details

Date Published: 15 December 2000
PDF: 10 pages
Proc. SPIE 4130, Infrared Technology and Applications XXVI, (15 December 2000); doi: 10.1117/12.409894
Show Author Affiliations
Herve Geoffray, CNES (France)
Alain Bardoux, CNES (France)
Michel Laporte, CNES (France)
Jean-Luc Tissot, CEA-LETI (France)


Published in SPIE Proceedings Vol. 4130:
Infrared Technology and Applications XXVI
Bjorn F. Andresen; Gabor F. Fulop; Marija Strojnik, Editor(s)

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