A. L. Ivanov et al 2006 Europhys. Lett. 73 920 doi:10.1209/epl/i2006-10002-4
A. L. Ivanov1, L. E. Smallwood1, A. T. Hammack2, Sen Yang2, L. V. Butov2 and A. C. Gossard3
Show affiliationsIn order to explain and model the inner ring in photoluminescence (PL) patterns of indirect excitons in GaAs/AlGaAs quantum wells (QWs), we develop a microscopic approach formulated in terms of coupled nonlinear equations for the diffusion, thermalization and optical decay of the particles. The origin of the inner ring is unambiguously identified: it is due to cooling of indirect excitons in their propagation from the excitation spot.
Issue 6 (March 2006)
Received 18 January 2006, accepted for publication 30 January 2006, in final form 30 January 2006
Published 15 February 2006
A. L. Ivanov et al 2006 Europhys. Lett. 73 920
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