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Proceedings Paper

Hyperspectral image analysis for standoff trace detection using IR laser spectroscopy
Author(s): J. Jarvis; F. Fuchs; S. Hugger; R. Ostendorf; L. Butschek; Q. Yang; A. Dreyhaupt; J. Grahmann; J. Wagner
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Paper Abstract

In the recent past infrared laser backscattering spectroscopy using Quantum Cascade Lasers (QCL) emitting in the molecular fingerprint region between 7.5 μm and 10 μm proved a highly promising approach for stand-off detection of dangerous substances. In this work we present an active illumination hyperspectral image sensor, utilizing QCLs as spectral selective illumination sources. A high performance Mercury Cadmium Telluride (MCT) imager is used for collection of the diffusely backscattered light. Well known target detection algorithms like the Adaptive Matched Subspace Detector and the Adaptive Coherent Estimator are used to detect pixel vectors in the recorded hyperspectral image that contain traces of explosive substances like PETN, RDX or TNT. In addition we present an extension of the backscattering spectroscopy technique towards real-time detection using a MOEMS EC-QCL.

Paper Details

Date Published: 12 May 2016
PDF: 10 pages
Proc. SPIE 9824, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVII, 98240V (12 May 2016); doi: 10.1117/12.2223604
Show Author Affiliations
J. Jarvis, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
F. Fuchs, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
S. Hugger, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
R. Ostendorf, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
L. Butschek, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Q. Yang, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
A. Dreyhaupt, Fraunhofer-Institut für Photonische Mikrosysteme (Germany)
J. Grahmann, Fraunhofer-Institut für Photonische Mikrosysteme (Germany)
J. Wagner, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)


Published in SPIE Proceedings Vol. 9824:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVII
Augustus Way Fountain III, Editor(s)

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