title: Compound resonance-induced coupling effects in composite plasmonic metamaterials.
abstract: We study a compound plasmonic system composed of a periodic Au grating array placed close to a thin Au film. The study is not limited to normal incidence and dispersion diagrams are computed for a broad variety of parameters. In addition to identifying localized and propagating modes and the coupling/hybridization interactions between them, we go further and identify modes of compound nature, i.e. those exhibiting both localized and propagating characteristics, and discuss which plasmon modes can exhibit such a behavior in the system at hand and how structural parameters play a central part in the spectral response of such modes.
authors: Nanophotonics and Metrology Laboratory, Swiss Federal Institute of Technology Lausanne EPFL-STI-NAM, Station 11, CH-1015 Lausanne, Switzerland.
authors: Arash
authors: A
authors: Farhang
authors: S Anantha
authors: SA
authors: Ramakrishna
authors: Olivier J F
authors: OJ
authors: Martin