title: 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.
authors.affiliation: Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, USA. apolyakov@lbl.gov
authors.forename: A
authors.initials: A
authors.lastname: Polyakov
authors.forename: K F
authors.initials: KF
authors.lastname: Thompson
authors.forename: S D
authors.initials: SD
authors.lastname: Dhuey
authors.forename: D L
authors.initials: DL
authors.lastname: Olynick
authors.forename: S
authors.initials: S
authors.lastname: Cabrini
authors.forename: P J
authors.initials: PJ
authors.lastname: Schuck
authors.forename: H A
authors.initials: HA
authors.lastname: Padmore