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Strong coupling between chlorosomes of photosynthetic bacteria and a confined optical cavity mode

Author

Listed:
  • David M. Coles

    (University of Oxford)

  • Yanshen Yang

    (Clark University)

  • Yaya Wang

    (Clark University)

  • Richard T. Grant

    (University of Sheffield)

  • Robert A. Taylor

    (University of Oxford)

  • Semion K. Saikin

    (Harvard University
    Institute of Physics, Kazan Federal University)

  • Alán Aspuru-Guzik

    (Harvard University)

  • David G. Lidzey

    (University of Sheffield)

  • Joseph Kuo-Hsiang Tang

    (Clark University)

  • Jason M. Smith

    (University of Oxford)

Abstract

Strong exciton–photon coupling is the result of a reversible exchange of energy between an excited state and a confined optical field. This results in the formation of polariton states that have energies different from the exciton and photon. We demonstrate strong exciton–photon coupling between light-harvesting complexes and a confined optical mode within a metallic optical microcavity. The energetic anti-crossing between the exciton and photon dispersions characteristic of strong coupling is observed in reflectivity and transmission with a Rabi splitting energy on the order of 150 meV, which corresponds to about 1,000 chlorosomes coherently coupled to the cavity mode. We believe that the strong coupling regime presents an opportunity to modify the energy transfer pathways within photosynthetic organisms without modification of the molecular structure.

Suggested Citation

  • David M. Coles & Yanshen Yang & Yaya Wang & Richard T. Grant & Robert A. Taylor & Semion K. Saikin & Alán Aspuru-Guzik & David G. Lidzey & Joseph Kuo-Hsiang Tang & Jason M. Smith, 2014. "Strong coupling between chlorosomes of photosynthetic bacteria and a confined optical cavity mode," Nature Communications, Nature, vol. 5(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms6561
    DOI: 10.1038/ncomms6561
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    Cited by:

    1. Fan Wu & Daniel Finkelstein-Shapiro & Mao Wang & Ilmari Rosenkampff & Arkady Yartsev & Torbjörn Pascher & Tu C. Nguyen- Phan & Richard Cogdell & Karl Börjesson & Tönu Pullerits, 2022. "Optical cavity-mediated exciton dynamics in photosynthetic light harvesting 2 complexes," Nature Communications, Nature, vol. 13(1), pages 1-7, December.

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