Abstract

We experimentally investigate the surface-enhanced Raman scattering (SERS) response of a 2D-periodic array of square gold nano-patches, functionalized by means of a conjugated, rigid thiol. We measure a Raman signal enhancement up to 200 times more intense compared to other plasmon-based nanostructures functionalized with the same molecule, and show that the enhancement is not strictly correlated to the presence of plasmonic resonances. The agreement between experimental and theoretical results reveals the importance of a full-wave analysis based on the inclusion of the actual scattering cross section of the molecule. The proposed numerical approach may serve not only as a tool to predict the enhancement of Raman signal scattered from strongly resonant nanostructure but also as an effective instrument to engineer SERS platforms that target specific molecules.

Autore Pugliese

• Bianco Giuseppe Valerio

Tutti gli autori

• Vincenti M. A. ; Grande M. ; Bianco G. V. ; de Ceglia D. ; Stomeo T.; De Vittorio M. ; Petruzzelli V. ; Bruno G. ; D'Orazio A. ; Scalora M.

Titolo volume/Rivista

Journal of applied physics

Anno di pubblicazione

2013

ISSN

0021-8979

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

Non Disponibile