Ultraviolet surface-enhanced Raman scattering at the plasmonic band edge of a metallic grating.
Opt Express
; 20(2): 1868-77, 2012 Jan 16.
Article
em En
| MEDLINE
| ID: mdl-22274532
ABSTRACT
Surface-enhanced Raman Scattering (SERS) is studied in sub-wavelength metallic gratings on a substrate using a rigorous electromagnetic approach. In the ultraviolet SERS is limited by the metallic dampening, yet enhancements as large as 10(5) are predicted. It is shown that these enhancements are directly linked to the spectral position of the plasmonic band edge of the metal/substrate surface plasmon. A simple methodology is presented for selecting the grating pitch to produce optimal enhancement for a given laser frequency.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Análise Espectral Raman
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Raios Ultravioleta
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Ressonância de Plasmônio de Superfície
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Modelos Teóricos
Tipo de estudo:
Prognostic_studies
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article