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복잡계 이론물리 연구단
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Evolution of Temporal Coherence in Confined Exciton-Polariton Condensates

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Title
Evolution of Temporal Coherence in Confined Exciton-Polariton Condensates
Author(s)
M. Klaas; H. Flayac; M. Amthor; I.G. Savenko; S. Brodbeck; T. Ala-Nissila; S. Klembt; C. Schneider; S. Höfling
Publication Date
2018-01
Journal
PHYSICAL REVIEW LETTERS, v.120, no.1, pp.017401
Publisher
AMER PHYSICAL SOC
Abstract
We study the influence of spatial confinement on the second-order temporal coherence of the emission froma semiconductor microcavity in the strong coupling regime. The confinement, provided by etched micropillars, has a favorable impact on the temporal coherence of solid state quasicondensates that evolve in our device above threshold. By fitting the experimental data with a microscopic quantum theory based on a quantum jump approach,we scrutinize the influence of pump power and confinement and find that phonon-mediated transitions are enhanced in the case of a confined structure, in which the modes split into a discrete set. By increasing the pump power beyond the condensation threshold, temporal coherence significantly improves in devices with increased spatial confinement, as revealed in the transition fromthermal to coherent statistics of the emitted light. © 2018 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/4261
DOI
10.1103/PhysRevLett.120.017401
ISSN
0031-9007
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
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