27 August 2010 Imaging stand-off detection of explosives by quantum cascade laser based backscattering spectroscopy
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Abstract
In this contribution we present the results of an imaging stand-off detection system based on a mid-IR external-cavity quantum cascade laser (EC-QCL) with a broad tunable range of 200 cm-1. Traces of TNT (trinitrotoluene) and PETN (pentaerythritol tetranitrate) as well as various non-hazardous substances such as flour or skin cream on different substrate-materials were investigated by illuminating them with the EC-QC laser and collecting the diffusely backscattered light. By tuning the EC-QCL across the significant absorption spectra we were able to detect the explosives
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Frank Fuchs, Frank Fuchs, Stefan Hugger, Stefan Hugger, Michel Kinzer, Michel Kinzer, Borislav Hinkov, Borislav Hinkov, Rolf Aidam, Rolf Aidam, Wolfgang Bronner, Wolfgang Bronner, Rainer Lösch, Rainer Lösch, Quankui Yang, Quankui Yang, Kai Degreif, Kai Degreif, Frank Schnürer, Frank Schnürer, Wenka Schweikert, Wenka Schweikert, } "Imaging stand-off detection of explosives by quantum cascade laser based backscattering spectroscopy", Proc. SPIE 7808, Infrared Remote Sensing and Instrumentation XVIII, 780810 (27 August 2010); doi: 10.1117/12.861356; https://doi.org/10.1117/12.861356
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