Quantum mechanical repulsion of exciton levels in a disordered quantum well evidenced by near-field spectroscopy

F. Intonti, V. Emiliani, Ch. Lienau, T. Elsaesser, V. Savona, E. Runge, R. Zimmermann, R. Nötzel, K.H. Ploog

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)

Abstract

Near-field photoluminescence spectra of a single quantum well dominated by emission from localized excitons are subjected to a statistical analysis of the two-energy autocorrelation function. This analysis is compared to a theoretical model of the exciton center-of-mass motion in a two-dimensional spatially correlated disordered potential. The spatial and energetic parameters of the disorder potential underlying the excitonic motion are extracted and clear signatures of quantum-mechanical energy level repulsion are revealed
Original languageEnglish
Pages (from-to)178-181
JournalPhysica E: Low-Dimensional Systems & Nanostructures
Volume13
Issue number2-4
DOIs
Publication statusPublished - 2002

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