Build up of off-diagonal long-range order in microcavity exciton-polaritons across the parametric threshold | Zendy

R. Spano | Zendy; Jorge Cuadra | Zendy; C. Lingg | Zendy; D. Sanvitto | Zendy; M. D. Martı́n | Zendy; P. R. Eastham | Zendy; M. van der Poel | Zendy; J. M. Hvam | Zendy; L. Viña | Zendy

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Build up of off-diagonal long-range order in microcavity exciton-polaritons across the parametric threshold

Author(s) -

R. Spano,

Jorge Cuadra,

C. Lingg,

D. Sanvitto,

M. D. Martı́n,

P. R. Eastham,

M. van der Poel,

J. M. Hvam,

L. Viña

Publication year - 2013

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.21.010792

Subject(s) - polariton , coherence (philosophical gambling strategy) , physics , optics , parametric statistics , coherence time , coherence length , optical parametric oscillator , spontaneous parametric down conversion , quantum optics , condensed matter physics , quantum mechanics , laser , quantum , statistics , superconductivity , mathematics , quantum entanglement

We report an experimental study of the spontaneous spatial and temporal coherence of polariton condensates generated in the optical parametric oscillator configuration, below and at the parametric threshold, and as a function of condensate area. Above the threshold we obtain very long coherence times (up to 3 ns) and a spatial coherence extending over the entire condensate (40 μm). The very long coherence time and its dependence on condensate area and pump power reflect the suppression of polariton-polariton interactions by an effect equivalent to motional narrowing.

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