Molecules in the mirror: how SERS backgrounds arise from the quantum method of images

Barnett, S. M. , Harris, N. and Baumberg, J. J. (2014) Molecules in the mirror: how SERS backgrounds arise from the quantum method of images. Physical Chemistry Chemical Physics, 16(14), pp. 6544-6549. (doi:10.1039/C4CP00093E)

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Publisher's URL: http://dx.doi.org/10.1039/C4CP00093E

Abstract

The Raman coupling of light to molecular vibrations is strongly modified when they are placed near a plasmonic metal surface, with the appearance of a strong broad continuum background in addition to the normal surface-enhanced Raman scattering (SERS) peaks. Using a quantum method of images approach, we produce a simple but quantitative explanation of the inevitable presence of the background, due to the resistive damping of the image molecule. This model thus suggests new strategies for enhancing the SERS peak to background ratio.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Barnett, Professor Stephen
Authors: Barnett, S. M., Harris, N., and Baumberg, J. J.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Chemistry Chemical Physics
Publisher:Royal Society of Chemistry
ISSN:1463-9076
ISSN (Online):1463-9084
Copyright Holders:Copyright © 2014 Royal Society of Chemistry
First Published:First published in Physical Chemistry Chemical Physics 16(14):6544-6549
Publisher Policy:Reproduced under a Creative Commons License

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