Single-shot stand-off detection of explosives precursors using UV coded aperture Raman spectroscopy

M. Svanqvist; M. Nordberg; H. Östmark

doi:10.1117/12.2176945

22 May 2015 Single-shot stand-off detection of explosives precursors using UV coded aperture Raman spectroscopy

M. Svanqvist, M. Nordberg, H. Östmark

Proceedings Volume 9455, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVI; 94550Q (2015) https://doi.org/10.1117/12.2176945
Event: SPIE Defense + Security, 2015, Baltimore, MD, United States

Abstract

We present preliminary results on the performance of a basic stand-off Raman spectroscopy setup using coded apertures compared to a setup using a round-to-slit fiber for light collection. Measurements were performed using single 5 ns laser shots at 355 nm with a target distance of 5.4 meters on ammonium nitrate powder. The results show an increase in signal-to-noise ratio of 3-8 times when using coded aperture multiplexing compared to the fiber setup.

Citation Download Citation

M. Svanqvist, M. Nordberg, and H. Östmark "Single-shot stand-off detection of explosives precursors using UV coded aperture Raman spectroscopy", Proc. SPIE 9455, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVI, 94550Q (22 May 2015); https://doi.org/10.1117/12.2176945

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