Systematic investigation of terahertz-induced excitonic Rabi splitting

M. Teich, M. Wagner, D. Stehr, H. Schneider, M. Helm, C. N. Böttge, A. C. Klettke, S. Chatterjee, M. Kira, S. W. Koch, G. Khitrova, H. M. Gibbs

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Abstract

Weak near-infrared and strong terahertz excitation are applied to study excitonic Rabi splitting in (GaIn)As/GaAs quantum wells. Pronounced anticrossing behavior of the split peaks is observed for different terahertz intensities and detunings relative to the intra-excitonic heavy-hole 1s-2p transition. At intermediate to high electric fields the splitting becomes highly asymmetric and exhibits significant broadening. A fully microscopic theory is needed to explain the experimental results. Comparisons with a two-level model reveal the increasing importance of higher excitonic states at elevated excitation levels.

Original languageEnglish (US)
Article number115311
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume89
Issue number11
DOIs
StatePublished - Mar 17 2014

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Teich, M., Wagner, M., Stehr, D., Schneider, H., Helm, M., Böttge, C. N., Klettke, A. C., Chatterjee, S., Kira, M., Koch, S. W., Khitrova, G., & Gibbs, H. M. (2014). Systematic investigation of terahertz-induced excitonic Rabi splitting. Physical Review B - Condensed Matter and Materials Physics, 89(11), [115311]. https://doi.org/10.1103/PhysRevB.89.115311