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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 15, Iss. 1 — Jan. 1, 1998
  • pp: 68–72

Giant Stokes fields on semicontinuous metal films

Patrice Gadenne, F. Brouers, Vladimir M. Shalaev, and Andrey K. Sarychev  »View Author Affiliations


JOSA B, Vol. 15, Issue 1, pp. 68-72 (1998)
http://dx.doi.org/10.1364/JOSAB.15.000068


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Abstract

The local electric fields on a semicontinuous metal film are shown to experience giant fluctuations in the visible and infrared spectral ranges when the dissipation in metallic grains is small. The field fluctuations result in strongly enhanced Raman scattering. The scattered local fields at the Stokes frequency are concentrated in sharp well-separated peaks and are enhanced up to giant values, 1014, that exceed by many orders of magnitude the average enhancement, 106. This opens a fascinating possibility for Raman scattering spectroscopy of single molecules on a semicontinuous metal film. A developed scaling theory for surface-enhanced Raman scattering from a semicontinuous film successfully explains the experimental observations.

© 1998 Optical Society of America

OCIS Codes
(290.5860) Scattering : Scattering, Raman
(300.0300) Spectroscopy : Spectroscopy
(350.6670) Other areas of optics : Surface photochemistry

Citation
Patrice Gadenne, F. Brouers, Vladimir M. Shalaev, and Andrey K. Sarychev, "Giant Stokes fields on semicontinuous metal films," J. Opt. Soc. Am. B 15, 68-72 (1998)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-15-1-68

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