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Dynamics of a Polariton Condensate in an Organic Semiconducting Microcavity

By Eric R Bittner, Svitlana Zaster and Carlos Silva

Abstract

Recent experiments on thin-film microcavities give evidence of Bose condensation of exciton-polariton states. Inspired by these observations, we consider the possibility that such exotic "half-light/half matter" states could be observed in thin-film organic semiconductors where the oscillator strength is generally stronger than in inorganic systems. Here we present a theoretical model and simulations of macroscopic exciton-polartiton condensates in thracene thin films sandwiched within a micro-meter scale resonant cavity and establish criteria for the conditions under which BEC could be achieved in these systems. We consider the effect of lattice disorder on the threshold intensities necessary to create polartion superfluid states and conclude that even allowing for up to 5% angular disorder of the molecules within the crystal lattice, the superfluid transition remains sharp

Topics: Condensed Matter - Quantum Gases, Condensed Matter - Mesoscale and Nanoscale Physics
Year: 2011
OAI identifier: oai:arXiv.org:1103.1326
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