Coupling Bright and Dark Plasmonic Lattice Resonances
By S. Rodriguez, A. Abass, B. Maes, O. Janssen, G. Vecchi, Jaime Gómez Rivas. 2011
141 citations recorded by the source corpus.
We demonstrate the coupling of bright and dark surface lattice resonances (SLRs), which are collective Fano resonances in 2D plasmonic crystals. As a result of this coupling, a frequency stop gap in the dispersion relation of SLRs is observed. The different field symmetries of the low- and high-frequency SLR bands lead to pronounced differences in their coupling to free-space radiation. Standing waves of very narrow spectral width compared to localized surface-plasmon resonances are formed at the high-frequency band edge, while subradiant damping onsets at the low-frequency band edge, leading the resonance into darkness. We introduce a coupled-oscillator analog to the plasmonic crystal, which serves to elucidate the physics of the coupled plasmonic resonances and which is used to estimate very high quality factors for SLRs.
Subfields: Biomedical Engineering, Electronic, Optical and Magnetic Materials
View Paper: https://www.semanticscholar.org/paper/a95f20862a8d4c5d196e8b6bdd8e0143404d45c2
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In Biomedical Engineering
In Electronic, Optical and Magnetic Materials
Citations in the corpus
- Collective resonances in plasmonic crystals: Size matters (2012, background): “The mutual coupling between bright and dark SLRs (in ‘infinite’ arrays) and the consequent opening of the gap were recently discussed [22].”