Voltage-controlled electron-hole interaction in a single quantum dot

A. Högele, S. Seidl, M. Kroner, K. Karrai, R. J. Warburton, M. Atatüre, J. Dreiser, A. Imamoǧlu, B. D. Gerardot, P. M. Petroff

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3 Citations (Scopus)

Abstract

The ground state of neutral and negatively charged excitons confined to a single self-assembled InGaAs quantum dot is probed in a direct absorption experiment by high resolution laser spectroscopy. We show how the anisotropic electron-hole exchange interaction depends on the exciton charge and demonstrate how the interaction can be switched on and off with a small dc voltage. Furthermore, we report polarization sensitive analysis of the excitonic interband transition in a single quantum dot as a function of charge with and without magnetic field. © 2005 Springer Science+Business Media, Inc.

Original languageEnglish
Pages (from-to)245-249
Number of pages5
JournalJournal of Superconductivity and Novel Magnetism
Volume18
Issue number2
DOIs
Publication statusPublished - Apr 2005

Keywords

  • Absorption
  • Charged exciton
  • Electron-hole exchange
  • Fine structure
  • Quantum dot

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    Högele, A., Seidl, S., Kroner, M., Karrai, K., Warburton, R. J., Atatüre, M., Dreiser, J., Imamoǧlu, A., Gerardot, B. D., & Petroff, P. M. (2005). Voltage-controlled electron-hole interaction in a single quantum dot. Journal of Superconductivity and Novel Magnetism, 18(2), 245-249. https://doi.org/10.1007/s10948-005-3377-4