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Proceedings Paper

Coupling Of Radiation Into Thin Film Modes By Means Of Localized Plasma Resonances
Author(s): W. R. Holland; D. G. Hall
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Paper Abstract

The discovery of surface-enhanced Raman scattering (SERS) has generated widespread activity on two fronts: 1) investigations of the physical mechanisms responsible for SERS, and 2) applications of those mechanisms to intensify other optical processes. The term SERS refers to the phenomenon in which the normally weak Stokes-shifted Raman signal from a molecular monolayer is increased by factors of 106 or more when the molecular layer is placed on a suitably roughened metal substrate. It is now rather widely believed that SERS is caused by an interaction between the molecule and localized plasma resonances (LPR) in the roughened substrate. The LPR are oscillations of the conduction electrons within the "bumps on the roughened substrate, and are excited by an incident optical beam. The LPR develop very strong surface electric fields; a molecule placed in close proximity to the "bumps" interacts with the strong field of the LPR giving rise to the enhanced Raman scattering.

Paper Details

Date Published: 30 November 1983
PDF: 3 pages
Proc. SPIE 0408, Integrated Optics III, (30 November 1983); doi: 10.1117/12.935725
Show Author Affiliations
W. R. Holland, University of Rochester (United States)
D. G. Hall, University of Rochester (United States)

Published in SPIE Proceedings Vol. 0408:
Integrated Optics III
Dennis G. Hall; Lynn D. Hutcheson, Editor(s)

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