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Proceedings Paper

Broadband tunable external cavity quantum cascade lasers for standoff detection of explosives
Author(s): S. Hugger; F. Fuchs; J. Jarvis; M. Kinzer; Q. K. Yang; W. Bronner; R. Driad; R. Aidam; K. Degreif; F. Schnürer
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Paper Abstract

We demonstrate contactless detection of solid residues of explosives using mid-infrared laser spectroscopy. Our detection scheme relies on active laser illumination, synchronized with the collection of the backscattered radiation by an infrared camera. The key component of the system is an external cavity quantum cascade laser with a tuning range of 300 cm-1 centered at 1220 cm-1. Residues of TNT (trinitrotoluene), PETN (pentaerythritol tetranitrate) and RDX (cyclotrimethylenetrinitramine) could be identified and discriminated against non-hazardous materials by scanning the illumination wavelength over several of the characteristic absorption features of the explosives.

Paper Details

Date Published: 7 May 2012
PDF: 10 pages
Proc. SPIE 8373, Micro- and Nanotechnology Sensors, Systems, and Applications IV, 83732G (7 May 2012); doi: 10.1117/12.918398
Show Author Affiliations
S. Hugger, Fraunhofer Institute for Applied Solid State Physics (Germany)
F. Fuchs, Fraunhofer Institute for Applied Solid State Physics (Germany)
J. Jarvis, Fraunhofer Institute for Applied Solid State Physics (Germany)
M. Kinzer, Fraunhofer Institute for Applied Solid State Physics (Germany)
Q. K. Yang, Fraunhofer Institute for Applied Solid State Physics (Germany)
W. Bronner, Fraunhofer Institute for Applied Solid State Physics (Germany)
R. Driad, Fraunhofer Institute for Applied Solid State Physics (Germany)
R. Aidam, Fraunhofer Institute for Applied Solid State Physics (Germany)
K. Degreif, Fraunhofer Institute for Physical Measurement Techniques (Germany)
F. Schnürer, Fraunhofer Institute for Chemical Technology (Germany)


Published in SPIE Proceedings Vol. 8373:
Micro- and Nanotechnology Sensors, Systems, and Applications IV
Thomas George; M. Saif Islam; Achyut Dutta, Editor(s)

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