Imaging stand-off detection of explosives using tunable MIR quantum cascade lasers

Frank Fuchs; Borislav Hinkov; Stefan Hugger; Jan M. Kaster; Rolf Aidam; Wolfgang Bronner; Klaus Köhler; Quankui Yang; Sven Rademacher; Kai Degreif; Frank Schnürer; Wenka Schweikert

doi:10.1117/12.840464

22 January 2010 Imaging stand-off detection of explosives using tunable MIR quantum cascade lasers

Frank Fuchs, Borislav Hinkov, Stefan Hugger, Jan M. Kaster, Rolf Aidam, Wolfgang Bronner, Klaus Köhler, Quankui Yang, Sven Rademacher, Kai Degreif, Frank Schnürer, Wenka Schweikert

Author Affiliations +

Proceedings Volume 7608, Quantum Sensing and Nanophotonic Devices VII; 760809 (2010) https://doi.org/10.1117/12.840464
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

Results on the detection of traces of trinitrotoluene (TNT) on different substrate-materials like Aluminum and standard car paint are presented. We investigated different samples with a movable imaging standoff detection system at angles of incidence far away from specular reflection. The samples were illuminated with a tunable mid-infrared external-cavity quantum cascade laser. For collection of the diffusely backscattered light a highperformance infrared imager was used. Trace concentrations of TNT corresponding to fingerprints on realworld- substrates were detected, while false alarms of cross-contaminations were successfully suppressed.

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Frank Fuchs, Borislav Hinkov, Stefan Hugger, Jan M. Kaster, Rolf Aidam, Wolfgang Bronner, Klaus Köhler, Quankui Yang, Sven Rademacher, Kai Degreif, Frank Schnürer, and Wenka Schweikert "Imaging stand-off detection of explosives using tunable MIR quantum cascade lasers", Proc. SPIE 7608, Quantum Sensing and Nanophotonic Devices VII, 760809 (22 January 2010); https://doi.org/10.1117/12.840464

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