18 May 2005 Terahertz reflection spectroscopy for explosives detection
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Terahertz spectroscopy can be used to detect explosives and related compounds by the unique absorption lines in the far infrared region. We will present results in both transmission and reflection geometries using a conventional time-domain terahertz spectroscopy system. We illustrate the importance of a uniform reference, and uniform sample preparation. Some problems can be avoided by generalizing this technique to detection with narrow linewidth terahertz illumination and a square law (intensity) detector.
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Michael J. Fitch, Michael J. Fitch, Caroline Dodson, Caroline Dodson, Yunqing Chen, Yunqing Chen, Haibo Liu, Haibo Liu, X.-C. Zhang, X.-C. Zhang, Robert Osiander, Robert Osiander, } "Terahertz reflection spectroscopy for explosives detection", Proc. SPIE 5790, Terahertz for Military and Security Applications III, (18 May 2005); doi: 10.1117/12.604763; https://doi.org/10.1117/12.604763

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