Electrically driven high-Q quantum dot-micropillar cavities

C. Boeckler*, S. Reitzenstein, C. Kistner, R. Debusmann, A. Loeffler, T. Kida, Sven Höfling, A. Forchel, L. Grenouillet, J. Claudon, J. M. Gerard

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

136 Citations (Scopus)

Abstract

We report on electrically pumped high-Q quantum dot-micropillar cavities with quality factors of up to 16.000. A special current injection scheme using a ring-shaped upper contact is presented which ensures an efficient light out-coupling through the uncapped upper surface of the micropillar. The devices feature excellent single-quantum dot cavity quantum electrodynamic effects with a Purcell enhancement of about 10 for a micropillar with a diameter of 2.5 mu m. (C) 2008 American Institute of Physics.

Original languageEnglish
Article number091107
Number of pages3
JournalApplied Physics Letters
Volume92
Issue number9
DOIs
Publication statusPublished - 3 Mar 2008

Keywords

  • SINGLE-PHOTON SOURCE
  • SPONTANEOUS EMISSION
  • MICROCAVITY
  • BOXES

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