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Spatiotemporal coherence of non-equilibrium multimode photon condensates

Marelic, Jakov et al.

New journal of physics. Volume 18:Number 10 (2016, October) -- Institute of Physics Pub

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  • Title:
    Spatiotemporal coherence of non-equilibrium multimode photon condensates
  • Author: Marelic, Jakov;
    Zajiczek, Lydia F;
    Hesten, Henry J;
    Leung, Kon H;
    Y X Ong, Edward;
    Mintert, Florian;
    Nyman, Robert A
  • Found In: New journal of physics. Volume 18:Number 10 (2016, October)
  • Journal Title: New journal of physics
  • Subjects: Physics--Periodicals; Periodicals; Physics; Bose–Einstein condensation--microcavity--light–matter interactions--fluorescent dye--non-equilibrium; Dewey: 530.05
  • Rights: legaldeposit
  • Publication Details: Institute of Physics Pub
  • Abstract: Abstract:

    We report on the observation of quantum coherence of Bose–Einstein condensed photons in an optically pumped, dye-filled microcavity. We find that coherence is long-range in space and time above condensation threshold, but short-range below threshold, compatible with thermal-equilibrium theory. Far above threshold, the condensate is no longer at thermal equilibrium and is fragmented over non-degenerate, spatially overlapping modes. A microscopic theory including cavity loss, molecular structure and relaxation shows that this multimode condensation is similar to multimode lasing induced by imperfect gain clamping.


  • Identifier: System Number: LDEAvdc_100072097519.0x000001; Journal ISSN: 1367-2630; 10.1088/1367-2630/18/10/103012
  • Publication Date: 2016
  • Physical Description: Electronic
  • Shelfmark(s): ELD Digital store

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