Journal
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
Volume 40, Issue 6, Pages 1926-1929Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physe.2007.08.089
Keywords
cavity polaritons; excitation spectrum; disordered organic materials
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The behaviour of cavity polaritons is strongly affected by disorder scattering in traditional inorganic semiconductor microcavities and, much more, in organic semiconductor microcavities. In the presence of disorder coherent cavity polaritons having a well defined in-plane wavevector coexist with incoherent states having a localized character. We here study through a numerical simulation of a one-dimensional disordered microcavity in the strong coupling regime, the polariton wavefunction character and the dynamical behaviour of excited wave packets. A detailed microscopic picture is obtained which substantiates the coexistence of both propagating and localized states over time and length scales of experimental relevance. (C) 2007 Elsevier B.V. All rights reserved.
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