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Resonant Rayleigh Scattering by Confined Two‐Dimensional Excitonic States
Author(s) -
Garro N.,
Phillips R. T.,
Cantarero A.,
Simmons M. Y.,
Ritchie D. A.
Publication year - 1997
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(199711)204:1<45::aid-pssb45>3.0.co;2-7
Subject(s) - rayleigh scattering , scattering , condensed matter physics , perturbation theory (quantum mechanics) , perturbation (astronomy) , physics , semiconductor , quantum well , plane (geometry) , elastic scattering , light scattering , optics , quantum mechanics , laser , geometry , mathematics
A systematic study of resonant Rayleigh scattering in semiconductor single quantum wells has been carried out. The dependence of the scattering efficiency on the well width and the temperature has been investigated. The behaviour observed in the resonant Rayleigh spectra can be explained in terms of the confinement of the excitonic states in the plane of the well due to fluctuations in the well width. A microscopic theoretical model for the elastic scattering of light by weakly confined two‐dimensional excitonic states has been developed. The Rayleigh scattering efficiency has been calculated to the lowest‐order of perturbation theory and the results found to be in good agreement with the experiment.