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Faraday Discuss. 2006;132:27-33; discussion 85-94.

SERS signals at the anti Stokes side of the excitation laser in extremely high local optical fields of silver and gold nanoclusters.

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1
Wellman Center for Photomedicine, Harvard Medical School, Boston MA, USA. kneipp@usa.net

Abstract

Surface-enhanced anti-Stokes Raman scattering from pumped excited vibrational levels and surface-enhanced hyper Raman scattering show a quadratic dependence on the excitation intensity and are discussed as incoherent two-photon excited Raman processes performed in strongly enhanced local optical fields of silver- or gold nanoclusters, where both effects can experience very similar electromagnetic enhancement conditions.

PMID:
16833105
[Indexed for MEDLINE]
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