Theory of tailorable optical response of two-dimensional arrays of plasmonic nanoparticles at dielectric interfaces.

ABSTRACT: Two-dimensional arrays of plasmonic nanoparticles at interfaces are promising candidates for novel optical metamaterials. Such systems materialise from 'top-down' patterning or 'bottom-up' self-assembly of nanoparticles at liquid/liquid or liquid/solid interfaces. Here, we present a comprehensive analysis of an extended effective quasi-static four-layer-stack model for the description of plasmon-resonance-enhanced optical responses of such systems. We investigate in detail the effects of the size of nanoparticles, average interparticle separation, dielectric constants of the media constituting the interface, and the nanoparticle position relative to the interface. Interesting interplays of these different factors are explored first for normally incident light. For off-normal incidence, the

SUBMITTER: Sikdar D 

PROVIDER: S-EPMC5031966 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature