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Title: Optical probing of the Coulomb interactions of an electrically pumped polariton condensate
Authors: Höfling, S.
Klaas, M.
Mandal, Subhaskar
Liew, Timothy Chi Hin
Schneider, C.
Amthor, M.
Klembt, S.
Worschech, L.
Keywords: Polaritions
Exciton mediated interactions
Issue Date: 2017
Source: Klaas, M., Mandal, S., Liew, T. C. H., Amthor, M., Klembt, S., Worschech, et al. (2017). Optical probing of the Coulomb interactions of an electrically pumped polariton condensate. Applied Physics Letters, 110(15), 151103-.
Series/Report no.: Applied Physics Letters
Abstract: We report on optical probing of the Coulomb interactions in an electrically driven exciton-polariton laser. By positioning a weak non-resonant Gaussian continuous wave-beam with a diameter of 2 μm inside an electrical condensate excited in a 20 μm diameter micropillar, we study a repulsion effect which is characteristic of the part-excitonic nature of the microcavity system in strong coupling. It manifests itself in a modified real space distribution of the emission pattern. Furthermore, polariton repulsion results in a continuous blueshift of the emission with the increased power of the probe beam. A Gross-Pitaevskii equation approach based on modeling the electrical and optical potentials explains our experimental data.
ISSN: 0003-6951
DOI: 10.1063/1.4979836
Schools: School of Physical and Mathematical Sciences 
Rights: © 2017 American Institute of Physics (AIP). This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics (AIP). The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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