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Distance detection using Raman scattering: a new tagging technology

Smith, W.E. and McCabe, A. and McNay, G. and Graham, D. and Shand, N. and Foulger, B. (2006) Distance detection using Raman scattering: a new tagging technology. In: Optics and Photonics for Counter Terrorism and Crime Fighting II. Proceedings of the society of photo-optical instrumentation engineers (SPIE) (6402). SPIE--The International Society for Optical Engineering., L4020-L4020. ISBN 978-0-8194-6500-9

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Abstract

Surface enhanced resonance Raman scattering (SERRS) provides an increase in sensitivity over Raman scattering of about 1014 and rivals fluorescence in terms of its quantum efficiency. With the use of modern edge and notch filters and CCD cameras, the price and complexity of Raman spectroscopy equipment has decreased rapidly. This means that the potential advantages of SERRS are now much easier to release for use for practical purposes. The technique has specific advantages in terms of sensitivity and coding for use for tagging.