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Proceedings Paper

Hyperspectral microscopy using an external cavity quantum cascade laser and its applications for explosives detection
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Paper Abstract

Using infrared hyperspectral imaging, we demonstrate microscopy of small particles of the explosives compounds RDX, tetryl, and PETN with near diffraction-limited performance. The custom microscope apparatus includes an external cavity quantum cascade laser illuminator scanned over its tuning range of 9.13-10.53 μm in four seconds, coupled with a microbolometer focal plane array to record infrared transmission images. We use the hyperspectral microscopy technique to study the infrared absorption spectra of individual explosives particles, and demonstrate sub-nanogram detection limits.

Paper Details

Date Published: 21 January 2012
PDF: 10 pages
Proc. SPIE 8268, Quantum Sensing and Nanophotonic Devices IX, 82681R (21 January 2012); doi: 10.1117/12.907488
Show Author Affiliations
M. C. Phillips, Pacific Northwest National Lab. (United States)
J. D. Suter, Pacific Northwest National Lab. (United States)
B. E. Bernacki, Pacific Northwest National Lab. (United States)


Published in SPIE Proceedings Vol. 8268:
Quantum Sensing and Nanophotonic Devices IX
Manijeh Razeghi; Eric Tournie; Gail J. Brown, Editor(s)

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