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Proceedings Paper

Near-room operating temperature SWIR InGaAs detectors in progress
Author(s): Xavier Hugon; O. Amore; Sebastein Cortial; Cl. Lenoble; M. Villard
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Paper Abstract

Since 1985, when THOMSON-CSF/TCS became involved in detector development for remote earth imaging applications, the InGaAs technology has been greatly improved leading to spreading use in a wide range of domains. Space born applications in the SPOT 4, Vegetation (SPOT 4 host), IRS C/D, and Huygens/Cassini programs are among the most brilliant successes. Initial industrial demonstrations, which have come last, are contributing to InGaAs demystification. We present InGaAs main forces and difficulties, and how recent progress has transformed the product offer toward these main points. Figures concerning dark current, noise (especially burst noise), spectral response, non linearity, and modulation transfer function (MTF), which are of main importance in detector arrays are presented. Trade-offs are pointed out with respect to end application. InGaAs supremacy in the 0.9 micrometer to 1.7 micrometer spectral range is discussed -- dark current density down to 2E - 08 A/cm2 and more than 85% quantum efficiency are currently obtained nowadays. Finally, InGaAs industrial maturity is emphasized as well as the strong and lively activity at THOMSON/TCS on technology which lets everyone expect increasing performances and recessing prices.

Paper Details

Date Published: 8 September 1995
PDF: 10 pages
Proc. SPIE 2552, Infrared Technology XXI, (8 September 1995); doi: 10.1117/12.218273
Show Author Affiliations
Xavier Hugon, Thomson-CSF (France)
O. Amore, Thomson-CSF (France)
Sebastein Cortial, Thomson-CSF (France)
Cl. Lenoble, Thomson-CSF (France)
M. Villard, Thomson-CSF (France)

Published in SPIE Proceedings Vol. 2552:
Infrared Technology XXI
Bjorn F. Andresen; Marija Strojnik, Editor(s)

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