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Magnetoinductive and Electroinductive Coupling in Plasmonic Metamaterial Molecules


  • We would like to thank Prof. T. Pfau, Prof. M. Dressel, and T. Meyrath for useful discussion and comments. We acknowledge S. Hein for his metamaterial visualizations. We are grateful to R. Zapf-Gottwick at the Institut für Physikalische Elektronik for electron microscopy support. We acknowledge H. Graebeldinger and M. Ubl for technical assistance. This work was financially supported by Deutsche Forschungsgemeinschaft (SPP1113 and FOR557), by Landesstiftung BW, and by BMBF (13N9155).


Metamaterial molecules are formed by magnetoinductive and electroinductive coupling of two single split-ring resonators (SRRs). Structural symmetry breaking enables inductive coupling between bright and dark “SRR atoms”, represented by white and black spheres. This coupling allows the formation of new hybridized plasmonic modes. The energetic level splitting between the symmetric and antisymmetric modes is shown.

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