Active Role of Oxide Layers on the Polarization of Plasmonic Nanostructures (Articolo in rivista)

Type
Label
  • Active Role of Oxide Layers on the Polarization of Plasmonic Nanostructures (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Alternative label
  • D'Agostino S. and Della Sala F. (2010)
    Active Role of Oxide Layers on the Polarization of Plasmonic Nanostructures
    in ACS nano
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • D'Agostino S. and Della Sala F. (literal)
Pagina inizio
  • 4117 (literal)
Pagina fine
  • 4125 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 4 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • Acknowledgement: This work was partially founded by the European Research Council (ERC) Starting Grant FP7, Project DE-DOM, Grant Agreement No. 207441. We acknowledge the CIN-ECA \"Iniziativa Trasverslale Calcolo Parallelo\" for allowing us to use the CLX and SP6 resources and M. Margarita for technical support. (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR, Ist Nanosci, NNL, Lecce, Italy (D'Agostino S., Della Sala F.); ISUFI Dist Tecnol, Lecce, Italy (D'Agostino S.); IIT, Ctr Biomol Nanotechnol, Lecce, Italy (Della Sala F.) (literal)
Titolo
  • Active Role of Oxide Layers on the Polarization of Plasmonic Nanostructures (literal)
Abstract
  • In this paper a theoretical study of polarization properties of a silver nanosphere touching a homogeneous silver substrate and covered by oxide layers of increasing thickness, is reported. Oxide layers are often deposited on metallic nanostructures in metal-enhanced fluorescence (MEF) or surface-enhanced raman scattering experiments to avoid nonradiative energy transfer from emitters to the metal, and to increase the nanoparticles stability against thermal processes and laser exposure. Not much has been said on the effect of the oxide on the field enhancement of such kind of plasmonic systems. This work aims at filling this gap by shedding light on the effects of the oxide coverage on the near and far field behavior: numerical simulations performed in the framework of the discrete dipole approximation show the presence of new resonances in the absorption spectra and, of major importance for MEF applications, a strong enhancement of the near field around the nanosphere. (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Autore CNR di
Prodotto
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Insieme di parole chiave di
data.CNR.it