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Ground-state polariton condensation in 2D-GaAs semiconductor microcavities

Authors
  • Maragkou, M.
  • Grundy, A. J. D.
  • Lagoudakis, P. G.
Type
Preprint
Publication Date
Jul 22, 2009
Submission Date
Jul 21, 2009
Source
arXiv
License
Yellow
External links

Abstract

We observe ground-state polariton condensation in a two dimensional GaAs/AlAs semiconductor microcavity under non resonant pulsed optical excitation. We resolve the formation of a polariton condensate by studying the spatial, angular, coherence, energy and transient dynamics of polariton photoluminescence. For high excitation densities we also observe a transition from the weak- to the strong-coupling regime in the time-domain and resolve the build-up of a coherent polariton state.

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