Regensburg 2010 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 63: Plasmonics and Nanooptics V

O 63.7: Vortrag

Donnerstag, 25. März 2010, 12:00–12:15, H32

Microcavity Plasmonics — •Ralf Ameling and Harald Giessen — 4th Physics Institute, University of Stuttgart, Germany

We couple hybridized plasmon modes in cut-wire metamaterials with resonator modes of a microcavity. Depending on the position of the cut-wire pair in the resonator, the symmetric (electric) or antisymmetric (magnetic) plasmon mode is coupled, manifested by an anticrossing of the resonances. We explain this behavior by taking the symmetry and spatial distribution of the electric fields in the resonator into account. Experimental results verify the predicted mode-splitting due to the strong resonant coupling and agree well with theory. Our work can serve as a model system for far-field plasmon-plasmon coupling and paves the way towards enhanced plasmon-plasmon interaction in photonically coupled three-dimensional Bragg structures.