Spin-dependent coupling of charged quantum dot excitons with continuum states

B. Urbaszek, R. J. Warburton, K. Karrai, C. Schulhauser, A. Högele, E. J. Mcghee, A. O. Govorov, B. D. Gerardot, X. Marie, T. Amand, P. M. Petroff

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Magnetic field and temperature dependent photoluminescence studies on neutral and charged excitons in individual InAs quantum dots allow us to uncover different mechanisms by which the discrete quantum dot states are coupled to delocalized continuum states in a quantum well (the wetting layer). The behaviour of the neutral and singly charged excitons can be explained taking only discrete quantum dot states into account. For doubly and triply charged excitons we have to consider spin dependent coherent and incoherent interactions between discrete quantum dot states and delocalized wetting layer states.

Original languageEnglish
Pages (from-to)395-402
Number of pages8
JournalActa Physica Polonica A
Volume106
Issue number3
Publication statusPublished - Sep 2004

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