TY - JOUR
T1 - Hyperspectral microscopy of explosives particles using an external cavity quantum cascade laser
AU - Phillips, Mark C.
AU - Bernacki, Bruce E.
N1 - Funding Information:
We thank Daylight Solutions for supplying the quantum cascade laser devices. The research described in this paper was conducted under the Laboratory Directed Research and Development Program at Pacific Northwest National Laboratory, a multiprogram national laboratory operated by Battelle for the U.S. Department of Energy under Contract DE-AC05-76RL01830.
PY - 2013
Y1 - 2013
N2 - Using infrared hyperspectral imaging, microscopy of small particles of the explosives compounds RDX, tetryl, and PETN with near diffraction-limited performance is demonstrated. The custom microscope apparatus includes an external cavity quantum cascade laser illuminator scanned over its tuning range of 9.13 to 10.53 ?m in 4 s, coupled with a microbolometer focal plane array to record infrared transmission images. The hyperspectral microscopy technique is used to study the infrared absorption spectra of individual explosives particles, and demonstrate subnanogram detection limits.
AB - Using infrared hyperspectral imaging, microscopy of small particles of the explosives compounds RDX, tetryl, and PETN with near diffraction-limited performance is demonstrated. The custom microscope apparatus includes an external cavity quantum cascade laser illuminator scanned over its tuning range of 9.13 to 10.53 ?m in 4 s, coupled with a microbolometer focal plane array to record infrared transmission images. The hyperspectral microscopy technique is used to study the infrared absorption spectra of individual explosives particles, and demonstrate subnanogram detection limits.
KW - explosives detection
KW - infrared microscopy
KW - infrared spectroscopy
KW - quantum cascade laser
KW - tunable laser
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U2 - 10.1117/1.OE.52.6.061302
DO - 10.1117/1.OE.52.6.061302
M3 - Article
AN - SCOPUS:84887459221
VL - 52
JO - SPIE J
JF - SPIE J
SN - 0091-3286
IS - 6
M1 - 061302
ER -