In 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. © EDP Sciences.
CITATION STYLE
Ivanov, A. L., Smallwood, L. E., Hammack, A. T., Yang, S., Butov, L. V., & Gossard, A. C. (2006). Origin of the inner ring in photoluminescence patterns of quantum well excitons. Europhysics Letters, 73(6), 920–926. https://doi.org/10.1209/epl/i2006-10002-4
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