Strong Coupling between Localized Plasmons and Organic Excitons in Metal Nanovoids

Y. Sugawara, T. A. Kelf, J. J. Baumberg, M. E Abdelsalam, and P. N. Bartlett
Phys. Rev. Lett. 97, 266808 – Published 29 December 2006

Abstract

Hybrid emitting exciton-plasmonic composites are constructed by coating arrays of spherical nanovoids embedded in a gold film with organic semiconducting molecular J-aggregate films. In such plasmonic crystals, localized plasmons confined inside the voids can be excited. We report the first observation of polaritonic spectral narrowing and strong coupling between localized plasmons and J-aggregate excitons with Rabi splittings of 230 meV at room temperature.

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  • Received 14 June 2006

DOI:https://doi.org/10.1103/PhysRevLett.97.266808

©2006 American Physical Society

Authors & Affiliations

Y. Sugawara, T. A. Kelf, and J. J. Baumberg

  • School of Physics and Astronomy, University of Southampton, Highfield, Southampton, SO17 1BJ, United Kingdom

M. E Abdelsalam and P. N. Bartlett

  • School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, United Kingdom

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Issue

Vol. 97, Iss. 26 — 31 December 2006

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