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Proceedings Paper

Stand-off detection of aerosols using mid-infrared backscattering Fourier transform spectroscopy
Author(s): L. Maidment; Z. Zhang; M. D. Bowditch; C. R. Howle; D. T. Reid
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Paper Abstract

The spectrum of mid-infrared light scattered from an actively illuminated aerosol was used to distinguish between different chemicals. Using spectrally broad illumination from an optical parametric oscillator covering 3.2 – 3.55 μm, characteristic absorption features of two different chemicals were detected, and two similar molecules were clearly distinguished using the spectra of backscattered light from each chemical aerosol.

Paper Details

Date Published: 24 October 2016
PDF: 7 pages
Proc. SPIE 9995, Optics and Photonics for Counterterrorism, Crime Fighting, and Defence XII, 999508 (24 October 2016); doi: 10.1117/12.2241052
Show Author Affiliations
L. Maidment, Heriot-Watt Univ. (United Kingdom)
Defence Science and Technology Lab. (United Kingdom)
Z. Zhang, Huazhong Univ. of Science and Technology (China)
M. D. Bowditch, Defence Science and Technology Lab. (United Kingdom)
C. R. Howle, Defence Science and Technology Lab. (United Kingdom)
D. T. Reid, Heriot-Watt Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 9995:
Optics and Photonics for Counterterrorism, Crime Fighting, and Defence XII
Douglas Burgess; Gari Owen; Henri Bouma; Felicity Carlysle-Davies; Robert James Stokes; Yitzhak Yitzhaky, Editor(s)

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