Vacuum Rabi Splitting and Strong-Coupling Dynamics for Surface-Plasmon Polaritons and Rhodamine 6G Molecules

T. K. Hakala, J. J. Toppari, A. Kuzyk, M. Pettersson, H. Tikkanen, H. Kunttu, and P. Törmä
Phys. Rev. Lett. 103, 053602 – Published 31 July 2009
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Abstract

We report on strong coupling between surface-plasmon polaritons (SPP) and Rhodamine 6G (R6G) molecules, with double vacuum Rabi splitting energies up to 230 and 110 meV. In addition, we demonstrate the emission of all three energy branches of the strongly coupled SPP-exciton hybrid system, revealing features of system dynamics that are not visible in conventional reflectometry. Finally, in analogy to tunable-Q microcavities, we show that the Rabi splitting can be controlled by adjusting the interaction time between waveguided SPPs and R6G deposited on top of the waveguide. The interaction time can be controlled with sub-fs precision by adjusting the length of the R6G area with standard lithography methods.

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  • Received 3 February 2009

DOI:https://doi.org/10.1103/PhysRevLett.103.053602

©2009 American Physical Society

Authors & Affiliations

T. K. Hakala1, J. J. Toppari1, A. Kuzyk1,2, M. Pettersson3, H. Tikkanen3, H. Kunttu3, and P. Törmä2,*

  • 1Nanoscience Center, Department of Physics, P.O. Box 35, FI-40014, University of Jyväskylä, Finland
  • 2Department of Applied Physics, P.O. Box 5100, FI-02015, Helsinki University of Technology, Finland
  • 3Nanoscience Center, Department of Chemistry, P.O. Box 35, FI-40014, University of Jyväskylä, Finland

  • *paivi.torma@hut.fi

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Issue

Vol. 103, Iss. 5 — 31 July 2009

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