title: Polariton-mediated energy transfer between organic dyes in a strongly coupled optical microcavity.
abstract: Strongly coupled optical microcavities containing different exciton states permit the creation of hybrid-polariton modes that can be described in terms of a linear admixture of cavity-photon and the constituent excitons. Such hybrid states have been predicted to have optical properties that are different from their constituent parts, making them a test bed for the exploration of light-matter coupling. Here, we use strong coupling in an optical microcavity to mix the electronic transitions of two J-aggregated molecular dyes and use both non-resonant photoluminescence emission and photoluminescence excitation spectroscopy to show that hybrid-polariton states act as an efficient and ultrafast energy-transfer pathway between the two exciton states. We argue that this type of structure may act as a model system to study energy-transfer processes in biological light-harvesting complexes.
authors.affiliation: 1] Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK [2].
authors.forename: David M
authors.initials: DM
authors.lastname: Coles
authors.affiliation: 1] School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK [2] IESL-FORTH, PO Box 1527, 71110 Heraklion, Crete, Greece.
authors.forename: Niccolo
authors.initials: N
authors.lastname: Somaschi
authors.affiliation: Institute of Theoretical Physics, Technische Universität Dresden, 01062 Dresden, Germany.
authors.forename: Paolo
authors.initials: P
authors.lastname: Michetti
authors.affiliation: Helia Photonics, Rosebank Park, Livingston EH54 7EJ, UK.
authors.forename: Caspar
authors.initials: C
authors.lastname: Clark
authors.affiliation: School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK.
authors.forename: Pavlos G
authors.initials: PG
authors.lastname: Lagoudakis
authors.affiliation: 1] IESL-FORTH, PO Box 1527, 71110 Heraklion, Crete, Greece [2] Department of Materials Science and Technology, University of Crete, 71003 Heraklion, Crete, Greece.
authors.forename: Pavlos G
authors.initials: PG
authors.lastname: Savvidis
authors.affiliation: Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK.
authors.forename: David G
authors.initials: DG
authors.lastname: Lidzey