Phys. Rev. B 80, 045301 (2009) [6 pages]Exciton-polariton condensation in a natural two-dimensional trapReceived 6 December 2008; revised 3 June 2009; published 1 July 2009 Bose-Einstein condensation of exciton polaritons has recently been reported in homogeneous structures only affected by random in-plane fluctuations. We have taken advantage of the ubiquitous defects in semiconductor microcavities to reveal the spontaneous dynamical condensation of polaritons in the quantized levels of a trap. We observe condensation in several quantized states, taking their snapshots in real and reciprocal space. We also show the effect of particle interactions for high occupation numbers, revealed by a change in the confined wave function toward the Thomas-Fermi profile. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.80.045301
DOI:
10.1103/PhysRevB.80.045301
PACS:
71.36.+c, 03.75.Nt, 71.35.Lk, 78.47.jc
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