title: Controlled in situ growth of tunable plasmonic self-assembled nanoparticle arrays.
abstract: Self-assembled silver nanoparticle (NP) arrays were produced by deposition at glancing angles on transparent stepped Al2O3 templates. The evolution of the plasmonic resonances has been monitored using reflection anisotropy spectroscopy (RAS) during growth. It is demonstrated that the morphology of the array can be tailored by changing the template structure, resulting in a large tunability of the optical resonances. In order to extract detailed information on the origin of the measured dichroic response of the system, a model based on dipolar interactions has been developed and the effect of tarnishing and morphological dispersion addressed.
authors.affiliation: Centre for Research on Adaptive Nanostructures and Nanodevices and School of Physics, Trinity College Dublin, Dublin 2, Ireland. rverre@tcd.ie
authors.forename: R
authors.initials: R
authors.lastname: Verre
authors.forename: K
authors.initials: K
authors.lastname: Fleischer
authors.forename: J F
authors.initials: JF
authors.lastname: McGilp
authors.forename: D
authors.initials: D
authors.lastname: Fox
authors.forename: G
authors.initials: G
authors.lastname: Behan
authors.forename: H
authors.initials: H
authors.lastname: Zhang
authors.forename: I V
authors.initials: IV
authors.lastname: Shvets