Title

Raman Scattering near Metal Nanostructures

Document Type

Article

Publication Date

8-2012

Publication Source

Journal of the Optical Society of America B

Abstract

We study Raman scattering in active media placed in proximity to different types of metal nanostructures, at wavelengths that display either Fabry–Perot or plasmonic resonances, or a combination of both. We use a semiclassical approach to derive equations of motion for Stokes and anti-Stokes fields that arise from quantum fluctuations.

Our calculations suggest that local field enhancement yields Stokes and anti-Stokes conversion efficiencies between 5 and 7 orders of magnitudes larger compared to cases without the metal nanostructure.

We also show that to first order in the linear susceptibility the local field correction induces a dynamic, intensity-dependent frequency detuning that at high intensities tends to quench Raman gain.

Inclusive pages

2035-2045

ISBN/ISSN

0740-3224

Comments

Permission documentation is on file.

Publisher

Optical Society of America

Volume

29

Issue

8

Peer Reviewed

yes