THz-manipulation of excitonic polarization in (GaIn)As/GaAs quantum wells

B. Ewers, N. S. Köster, R. Woscholski, M. Koch, S. Chatterjee, G. Khitrova, H. M. Gibbs, A. C. Klettke, M. Kira, S. W. Koch

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We investigate the interaction of strong single-cycle THz-pulses with a coherent excitonic polarization. The initial bleaching is superimposed by a splitting of the 1s exciton resonance and eventually is accompanied by the emergence of side-bands on both the high and low energy sides of the former resonance. A quantum-mechanical many-body analysis associates these observations with the transition from excitationinduced bleaching and the regime of excitonic Rabi flopping to multi-THz-photon ionization and hence the population of states with high orbital quantum numbers.

Original languageEnglish (US)
Pages (from-to)1226-1229
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume10
Issue number9
DOIs
StatePublished - Sep 1 2013

Keywords

  • Exciton
  • Quantum well
  • Rabi
  • Strong THz

ASJC Scopus subject areas

  • Condensed Matter Physics

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