Journal
VIBRATIONAL SPECTROSCOPY
Volume 48, Issue 1, Pages 8-11Publisher
ELSEVIER
DOI: 10.1016/j.vibspec.2008.01.017
Keywords
Raman; non-invasive; illicit
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We demonstrate the potential of Spatially Offset Raman Spectroscopy (SORS) for the non-invasive detection of chemicals in powder form (e.g. illicit drugs or explosives) concealed within diffusely scattering containers. The performance of the technique is compared with that of conventional backscattering Raman spectroscopy. Enhanced sensitivity is achieved by the SORS technique's inherent ability to effectively suppress fluorescence and Raman contributions originating from the packaging. The application is demonstrated on the non-invasive detection of sugar hidden in diffusely scattering plastic bottles. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.
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