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Plasmon resonance tuning in metallic nanocavities.


ABSTRACT: Nanocavities fabricated in a metallic surface have important and technologically useful properties of complete light absorption and strong field enhancement. Here, we demonstrate how a nanometerthick alumina deposition inside such a cavity can be used to gain an exquisite control over the resonance wavelength. This process allows achieving a precise control over the spectral response and is completely reversible allowing many tuning attempts to be made on a single structure until the optimum performance is achieved.

SUBMITTER: Polyakov A 

PROVIDER: S-EPMC3515806 | biostudies-other | 2012

REPOSITORIES: biostudies-other

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