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Proceedings Paper

Bispectral thermal imaging with quantum-well infrared photodetectors and InAs/GaSb type-II superlattices
Author(s): Robert Rehm; Martin Walther; Joachim Fleißner; Johannes Schmitz; Johann Ziegler; Wolfgang Cabanski; Rainer Breiter
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Paper Abstract

We report on bispectral imaging systems based on quantum-well infrared photodetectors (QWIPs) and InAs/GaSb type-II superlattices (SLs) for the mid-wavelength infrared spectral range between 3-5 μm (MW) and the longwavelength infrared regime at 8-12 μm (LW). A dual-band MW/LW QWIP imager and a dual-color MW/MW InAs/GaSb SL camera are demonstrated. The two systems offer a spatial resolution of 288×384 pixels and a simultaneous detection of both channels on each pixel. Both technologies achieve an excellent noise equivalent temperature difference below 30 mK in each channel with F#/2.0 optics.

Paper Details

Date Published: 17 May 2006
PDF: 11 pages
Proc. SPIE 6206, Infrared Technology and Applications XXXII, 62060Y (17 May 2006); doi: 10.1117/12.667627
Show Author Affiliations
Robert Rehm, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Martin Walther, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Joachim Fleißner, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Johannes Schmitz, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Johann Ziegler, AIM Infrarot-Module GmbH (Germany)
Wolfgang Cabanski, AIM Infrarot-Module GmbH (Germany)
Rainer Breiter, AIM Infrarot-Module GmbH (Germany)

Published in SPIE Proceedings Vol. 6206:
Infrared Technology and Applications XXXII
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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