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arXiv · 1201.2151

Collective Plasmonic-Molecular Modes in the Strong Coupling Regime

Adi Salomon·Robert J. Gordon·Yehiam Prior·Tamar Seideman·Maxim Sukharev
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Abstract

We demonstrate strong coupling between molecular excited states and surface plasmon modes of a slit array in a thin metal film. The coupling manifests itself as an anti-crossing behavior of the two newly formed polaritons. As the coupling strength grows, a new mode emerges, which is attributed to long range molecular interactions mediated by the plasmonic field. The new, molecular-like mode repels the polariton states, and leads to an opening of energy gaps both below and above the asymptotic free molecule energy.

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Adi Salomon, Robert J. Gordon, Yehiam Prior, Tamar Seideman, Maxim Sukharev. 2012-06-04. Collective Plasmonic-Molecular Modes in the Strong Coupling Regime. https://doi.org/10.1103/physrevlett.109.073002

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