META Conference, META'10

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Exciting Tunable Dark Resonances in Plasmonic Nano-Crosses
Niels Verellen, Pol Van Dorpe, Guy A. E. Vandenbosch, Victor V. Moshchalkov

Last modified: 2009-10-19


Localized surface plasmon resonances in gold nano-cross geometries are studied numerically using the finite difference time domain (FDTD) method. It is shown that two- and three-armed crosses sustain pronounced dark multipolar resonances tunable by changing arm angle and length. When coupled to a gold slab subradiant modes and Fano interferences appear.