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Title: Experimental Realization of Subradiant, Superradiant, and Fano Resonances in Ring/Disk Plasmonic Nanocavities
Authors: Sonnefraud, Yannick ×
Verellen, Niels
Sobhani, Heidar
Vandenbosch, Guy
Moshchalkov, Victor
Van Dorpe, Pol
Nordlander, Peter
Maier, Stefan A #
Issue Date: Mar-2010
Publisher: Amer chemical soc
Series Title: Acs nano vol:4 issue:3 pages:1664-1670
Abstract: Subradiant and superradiant plasmon modes in concentric ring/disk nanocavities are experimentally observed. The subradiance is obtained through an overall reduction of the total dipole moment of the hybridized mode due to antisymmetric coupling of the dipole moments of the parent plasmons. Multiple Fano resonances appear within the superradiant continuum when structural symmetry is broken via a nanometric displacement of the disk, due to coupling with higher order ring modes. Both subradiant modes and Fano resonances exhibit substantial reductions in line width compared to the parent plasmon resonances, opening up possibilities in optical and near IR sensing via plasmon line shape design.
ISSN: 1936-0851
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Associated Section of ESAT - INSYS, Integrated Systems
Solid State Physics and Magnetism Section
ESAT- TELEMIC, Telecommunications and Microwaves
× corresponding author
# (joint) last author

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