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Random‐matrix model of resonant Rayleigh scattering in systems with exciton fine‐structure splitting by Erich Runge; Roland Zimmermann is a Physics and Astronomy article available to read on EtoBox.
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## Abstract We extend our recently developed local random‐matrix model of resonant Rayleigh scattering at the exciton transition in semiconductor nanostructure [Phys. Rev. B **69**, 155307 (2004)] to systems with finite fine‐structure (exchange) splitting. A much richer phenomenology is found due to the interplay of __two__ small characteristic energies, one being the exchange energy and the other given by the average energetic distance of two exciton state localized in the same spatial region. Three contributions to the Rayleigh signal can be distinguished by their temporal and angular behavior. They correspond to forward scattering, backscattering and a broad isotropic background. The change of their relative weight as function of average exchange energies provides further insight into the intimate connection of level repulsion and enhanced backscattering and the origin of the universal 2:3 ratio predicted in our earlier work. The time‐dependent Rayleigh signal is found to depend strongly on the polarization of excitation and detection. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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- Author
- Erich Runge; Roland Zimmermann
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 0370-1972)
- Published
- 2004
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)