Strong Coupling in Organic and Hybrid Semiconductor Microcavities

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• Prof. David Lidzey (Department of Physics and Astronomy, The University of Sheffield, UK)
• Tuesday 28 October 2014, 14:30-15:30
• Kapitza Building Seminar Room, Cavendish Laboratory, Department of Physics.

If you have a question about this talk, please contact Dr. Stavros Athanasopoulos.

I will overview the phenomena of strong exciton-photon coupling in organic semiconductor microcavities. After introducing a simple description of strong coupling through the use of a coupled oscillator model, I will discuss the field of “Organic Polaritonics”, starting from the first reported observations to recent observations of polariton lasing. I then review our work in which we have used PL and PLE measurements to understand the mechanisms by which excited molecular states couple to cavity photons to form polaritons which then undergo radiative and non-radiative decay. Finally, I will discuss recent experiments in which we have placed two different organic dyes in the same strong-coupled cavity and have evidenced energy transfer between the dyes using a polariton mediated process.

This talk is part of the Optoelectronics Group series.

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