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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 10, Iss. 17 — Aug. 26, 2002
  • pp: 879–886

Electromagnetic mechanism in surface-enhanced Raman scattering from Gaussian-correlated randomly rough metal substrates

José A. Sánchez-Gil, José V. García-Ramos, and Eugenio R. Méndez  »View Author Affiliations


Optics Express, Vol. 10, Issue 17, pp. 879-886 (2002)
http://dx.doi.org/10.1364/OE.10.000879


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Abstract

We investigate the electromagnetic mechanism in surface-enhanced Raman scattering (SERS) from randomly rough metal surfaces with Gaussian statistics and Gaussian correlation function. By means of rigorous numerical calculations, large average SERS enhancement factors (above 104) are encountered when the correlation length is of the order of (or lower than) a hundred nanometers, with excitation in the visible and near infrared. These Gaussian-correlated metal surfaces can be used as SERS substrates. Furthermore, local SERS enhancement factors are obtained of up to 108 that make them appropriate for resonant SERS single molecule detection.

© 2002 Optical Society of America

OCIS Codes
(190.4350) Nonlinear optics : Nonlinear optics at surfaces
(240.6680) Optics at surfaces : Surface plasmons
(290.5860) Scattering : Scattering, Raman
(290.5880) Scattering : Scattering, rough surfaces
(300.6450) Spectroscopy : Spectroscopy, Raman

ToC Category:
Research Papers

History
Original Manuscript: May 24, 2002
Revised Manuscript: August 20, 2002
Published: August 26, 2002

Citation
Jose Sanchez-Gil, Jose Garcia-Ramos, and Eugenio Mendez, "Electromagnetic mechanism in surface-enhanced Raman scattering from Gaussian-correlated randomly rough metal substrates," Opt. Express 10, 879-886 (2002)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-10-17-879


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