Strongly polarized scattering in Surface Enhanced Raman Spectroscopy of randomly distributed molecules on gold nanowires
DOI:
https://doi.org/10.1478/C1V89S1P034Abstract
We study the polarized Surface Enhanced Raman Scattering from randomly oriented molecules adsorbed on near-field coupled gold nanowires. We show that the scattering is polarized always along the wire-to-wire nanocavities. We find the exact angular dependence for the polarized, unpolarized, parallel- and cross-polarized SERS intensity. Finally we develop a model that fits the experimental data and allows to measure the field enhancement and the re-radiation enhancement factors, independently, and retrieve the depolarization ratio of the probe molecules.
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Pubblicato
2011-09-15
Fascicolo
Sezione
Conference Papers
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