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dc.contributor.authorKreinberg, Sören
dc.contributor.authorChow, Weng W.
dc.contributor.authorWolters, Janik
dc.contributor.authorSchneider, Christian
dc.contributor.authorGies, Christopher
dc.contributor.authorJahnke, Frank
dc.contributor.authorHöfling, Sven
dc.contributor.authorKamp, Martin
dc.contributor.authorReitzenstein, Stephan
dc.identifier.citationKreinberg , S , Chow , W W , Wolters , J , Schneider , C , Gies , C , Jahnke , F , Höfling , S , Kamp , M & Reitzenstein , S 2017 , ' Emission from quantum-dot high-β microcavities : transition from spontaneous emission to lasing and the effects of superradiant emitter coupling ' , Light: Science & Applications , vol. 6 , e17030 .
dc.identifier.otherPURE: 249252210
dc.identifier.otherPURE UUID: 9e34f418-d45b-430f-bb12-cde899934cc2
dc.identifier.otherScopus: 85028056609
dc.identifier.otherWOS: 000408584200002
dc.descriptionThe research is funded in part by the European Research Council under the Seventh Framework ERC Grant Agreement No. 615613 of the European Union, the German Research Foundation via the projects RE2974/5-1, Ka2318 7-1 and JA 619/10-3, and the U.S. Department of Energy under Contract No. DE-AC04-94AL85000. CG and FJ gratefully acknowledge financial support from the German Science Foundation (DFG). FJ further acknowledges support from the German Federal Ministry of Education and Research (BMBF).en
dc.description.abstractMeasured and calculated results are presented for the emission properties of a new class of emitters operating in the cavity quantum electrodynamics regime. The structures are based on high-finesse GaAs/AlAs micropillar cavities, each with an active medium consisting of a layer of InGaAs quantum dots and the distinguishing feature of having a substantial fraction of spontaneous emission channeled into one cavity mode (high β-factor). This paper demonstrates that the usual criterion for lasing with a conventional (low β-factor) cavity, that is, a sharp non-linearity in the input-output curve accompanied by noticeable linewidth narrowing, has to be reinforced by the equal-time second-order photon autocorrelation function to confirm lasing. The paper also shows that the equal-time second-order photon autocorrelation function is useful for recognizing superradiance, a manifestation of the correlations possible in high-β microcavities operating with quantum dots. In terms of consolidating the collected data and identifying the physics underlying laser action, both theory and experiment suggest a sole dependence on intracavity photon number. Evidence for this assertion comes from all our measured and calculated data on emission coherence and fluctuation, for devices ranging from light emitting diodes (LEDs) and cavity-enhanced LEDs to lasers, lying on the same two curves: one for linewidth narrowing versus intracavity photon number and the other for g(2)(0) versus intracavity photon number.
dc.relation.ispartofLight: Science & Applicationsen
dc.rightsCopyright The Author(s) 2017. This work is licensed under a Creative Commons AttributionNonCommercial-ShareAlike 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
dc.subjectLaser physicsen
dc.subjectPhoton statisticsen
dc.subjectQuantum dotsen
dc.subjectQuantum opticsen
dc.subjectQC Physicsen
dc.subjectTK Electrical engineering. Electronics Nuclear engineeringen
dc.titleEmission from quantum-dot high-β microcavities : transition from spontaneous emission to lasing and the effects of superradiant emitter couplingen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews.Condensed Matter Physicsen
dc.description.statusPeer revieweden

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