Anomalous scaling properties of optical excitations in random media

Alexander L. Burin; Mark A. Ratner

doi:10.1117/12.354908

19 July 1999 Anomalous scaling properties of optical excitations in random media

Alexander L. Burin, Mark A. Ratner

Proceedings Volume 3749, 18th Congress of the International Commission for Optics; (1999) https://doi.org/10.1117/12.354908
Event: ICO XVIII 18th Congress of the International Commission for Optics, 1999, San Francisco, CA, United States

Abstract

The eigenstates of small radius molecular excitations, coupled by the resonant dipole-dipole interaction, are examined for a system of random resonant centers. Anomalous scaling properties are seen even in the absence of external disordering, i.e. their properties are intermediate between localized and `true' delocalized states. The effective transport properties of excitations can be described in terms of anomalous diffusion, with a distance dependent diffusion coefficient scaling as D approximately 1/R. This anomalous behavior agrees with our simulation of boundary quenching of excitons and with the related experiment on organic light emitting diodes.

Citation Download Citation

Alexander L. Burin and Mark A. Ratner "Anomalous scaling properties of optical excitations in random media", Proc. SPIE 3749, 18th Congress of the International Commission for Optics, (19 July 1999); https://doi.org/10.1117/12.354908

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