Compound resonance-induced coupling effects in composite plasmonic metamaterials

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. (C)2012 Optical Society of America


Published in:
Optics Express, 20, 28, 29447-29456
Year:
2012
Publisher:
Optical Society of America
ISSN:
1094-4087
Laboratories:




 Record created 2013-06-11, last modified 2018-03-17

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