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Optical probing of the Coulomb interactions of an electrically pumped polariton condensate

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dc.contributor.authorKlaas, M.
dc.contributor.authorMandal, S.
dc.contributor.authorLiew, T. C. H.
dc.contributor.authorAmthor, M.
dc.contributor.authorKlembt, S.
dc.contributor.authorWorschech, L
dc.contributor.authorSchneider, C.
dc.contributor.authorHöfling, Sven
dc.date.accessioned2017-04-04T15:30:14Z
dc.date.available2017-04-04T15:30:14Z
dc.date.issued2017-04-10
dc.identifier.citationKlaas , M , Mandal , S , Liew , T C H , Amthor , M , Klembt , S , Worschech , L , Schneider , C & Höfling , S 2017 , ' Optical probing of the Coulomb interactions of an electrically pumped polariton condensate ' , Applied Physics Letters , vol. 110 , no. 15 , 151103 . https://doi.org/10.1063/1.4979836en
dc.identifier.issn0003-6951
dc.identifier.otherPURE: 249556205
dc.identifier.otherPURE UUID: f047922d-bc7b-44c6-958f-07b5e0dfc014
dc.identifier.otherScopus: 85017293267
dc.identifier.otherWOS: 000399689400003
dc.identifier.urihttps://hdl.handle.net/10023/10585
dc.descriptionThe authors would like to thank the State of Bavaria for financial support. SM and TL were supported by the NAP Start-Up grant M4081630 and MOE AcRF Tier 1 grant 2016-T1-001-084.en
dc.description.abstractWe 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 increased power of the probe beam. A Gross-Pitaevskii equation approach based on modeling the electrical and optical potentials explains our experimental data.
dc.language.isoeng
dc.relation.ispartofApplied Physics Lettersen
dc.rights© 2017, the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://dx.doi.org/10.1063/1.4979836en
dc.subjectPolaritonsen
dc.subjectExciton mediated interactionsen
dc.subjectGround statesen
dc.subjectBlue shiften
dc.subjectCondensationen
dc.subjectQC Physicsen
dc.subjectNDASen
dc.subject.lccQCen
dc.titleOptical probing of the Coulomb interactions of an electrically pumped polariton condensateen
dc.typeJournal articleen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.identifier.doihttps://doi.org/10.1063/1.4979836
dc.description.statusPeer revieweden


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