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Resonance contributions to anti-Stokes/Stokes ratios under surface enhanced Raman scattering conditions.

Maher, R C*; Hou, J*; Cohen, L F*; Le Ru, E C*; Hadfield, J M*; Harvey, J E*; Etchegoin, P G*; Liu, FM*; Green, M*; Brown, R J C; Milton, M J T (2005) Resonance contributions to anti-Stokes/Stokes ratios under surface enhanced Raman scattering conditions. J. Chem. Phys., 123. 084702

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Abstract

Anti-Stokes/Stokes asymmetries under surface enhanced Raman scattering (SERS) conditions are studied for a wide variety of SERS-active media and different analytes. Evidence is provided for the existence of underlying resonances that create these asymmetries. We show here that these resonances are associated with the electromagnetic coupling between the analyte (probe) and the metal. The work demonstrates the use of the anti-Stokes/Stokes ratio as a tool to understand the hierarchy of resonances in the SERS problem, which is essential for quantification purposes.

Item Type: Article
Subjects: Analytical Science
Analytical Science > Trace Analysis and Electrochemistry
Last Modified: 23 Jul 2018 12:53
URI: http://eprintspublications.npl.co.uk/id/eprint/3294

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