Applied Physics B

, Volume 93, Issue 2, pp 331–337

Exciton–polariton formation at room temperature in a planar ZnO resonator structure

  • R. Schmidt-Grund
  • B. Rheinländer
  • C. Czekalla
  • G. Benndorf
  • H. Hochmuth
  • M. Lorenz
  • M. Grundmann
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DOI: 10.1007/s00340-008-3160-x

Cite this article as:
Schmidt-Grund, R., Rheinländer, B., Czekalla, C. et al. Appl. Phys. B (2008) 93: 331. doi:10.1007/s00340-008-3160-x

Abstract

We show the dispersion of exciton–polaritons in an all oxide planar resonator structure. A quasi-bulk ZnO film acts as active medium and as cavity. The mirrors are made of Bragg reflectors consisting of ZrO2 and MgO layers. Despite a limited structural perfection, we have observed a giant energy splitting of the exciton–polariton branches of about 78 meV at maximum using reflectivity and photoluminescence measurements.

PACS

71.36.+c42.60.Da78.55.Et

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • R. Schmidt-Grund
    • 1
  • B. Rheinländer
    • 1
  • C. Czekalla
    • 1
  • G. Benndorf
    • 1
  • H. Hochmuth
    • 1
  • M. Lorenz
    • 1
  • M. Grundmann
    • 1
  1. 1.Universität Leipzig, Institut für Experimentelle Physik IILeipzigGermany