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Photon-Mediated Hybridization of Frenkel Excitons in Organic Semiconductor Microcavities

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Science  02 Jun 2000:
Vol. 288, Issue 5471, pp. 1620-1623
DOI: 10.1126/science.288.5471.1620

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Abstract

Coherent excitations of intricate assemblies of molecules play an important role in natural photosynthesis. Microcavities are wavelength-dimension artificial structures in which excitations can be made to couple through their mutual interactions with confined photon modes. Results for microcavities containing two spatially separated cyanine dyes are presented here, where simultaneous strong coupling of the excitations of the individual dyes to a single cavity mode leads to new eigenmodes, described as admixtures of all three states. These “hybrid” exciton-photon structures are of potential interest as model systems in which to study energy capture, storage, and transfer among coherently coupled molecular excitations.

  • * To whom correspondence should be addressed. E-mail: d.g.lidzey{at}sheffield.ac.uk

  • Present address: Department of Physics, University of Bath, Claverton Down, Bath BA2 7AY, UK.

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