Enhanced resonant backscattering of light from quantum-well excitons

The angle-dependent resonant Rayleigh scattering of light from excitons in a disordered quantum well is studied theoretically. An enhancement of the scattered intensity peaked on the backscattering direction is predicted, for values of the parameters corresponding to realistic GaAs/AlGaAs heterostructures. It is shown that this effect can be isolated by measuring the differential enhancement between two different scattering directions. An analysis in terms of perturbation theory provides a simple analytical approximation of the measurable quantity.


Published in:
Physical Review B, 62, R4805-R4808
Year:
2000
Keywords:
Laboratories:




 Record created 2009-09-22, last modified 2018-03-17


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