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| 1 | Emission from quantum-dot high-β microcavities: transition from spontaneous emission to lasing and the effects of superradiant emitter coupling显示文摘Measured 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(QDs)and the distinguishing feature of having a substantial fraction of spontaneous emission channeled into one cavity mode(highβ-factor).This paper demonstrates that the usual criterion for lasing with a conventional(lowβ-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-βmicrocavities operating with QDs.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. | Sören Kreinberg Weng W Chow Janik Wolters Christian Schneider Christopher Gies Frank Jahnke Sven Höfling Martin Kamp Stephan Reitzenstein 无 | 2017 | Light(Science & Applications)2017，6，1： | 2 |
| 2 | Observing chaos for quantum-dot microlasers with external feedback显示文摘 | Albert F Hopfmann C Reitzenstein S | 2011 | Nature Communications2011，17，2： | 1 |
| 3 | Photon antibunching from a single quantum-dot-microcavity system in the strong coupling regime显示文摘 | PRESS D GOTZINGER S REITZENSTEIN S | 2007 | Physics Review Letters2007，98，11： | 1 |
| 4 | Homodimeric galectin-7(P53-induced gene 1) is a negative growth regulator for human neuroblastoma cells 显示文摘 | Kopitz J Andre S von Reitzenstein C | 2003 | Oncogene2003，22，40： | 1 |
| 5 | Strong coupling in a single quantum dot-semiconductor microcavity system显示文摘 | Reithmaier J P Sek G L(o)ffler A Hofmann C Kuhn S Reitzenstein S Keldysh L V Kulakovskii V D Reinecke T L Forchel A | | 0，，7014： | 1 |
| 6 | Single quantum dot controlled lasing effects in high-Q micropillar cavities显示文摘 | REITZENSTEIN S BCKLER C BAZHENOV A | 2008 | Optics Express2008，16，7： | 1 |
| 7 | Quantum-optical spectroscopy of a twolevel system using an electrically driven micropillar laser as a resonant excitation source显示文摘Two-level emitters are the main building blocks of photonic quantum technologies and are model systems for the exploration of quantum optics in the solid state.Most interesting is the strict resonant excitation of such emitters to control their occupation coherently and to generate close to ideal quantum light,which is of utmost importance for applications in photonic quantum technology.To date,the approaches and experiments in this field have been performed exclusively using bulky lasers,which hinders the application of resonantly driven two-level emitters in compact photonic quantum systems.Here we address this issue and present a concept for a compact resonantly driven single-photon source by performing quantum-optical spectroscopy of a two-level system using a compact high-βmicrolaser as the excitation source.The two-level system is based on a semiconductor quantum dot(QD),which is excited resonantly by a fiber-coupled electrically driven micropillar laser.We dress the excitonic state of the QD under continuous wave excitation,and trigger the emission of single photons with strong multi-photon suppression(ge2Te0T?0:02)and high photon indistinguishability(V=57±9%)via pulsed resonant excitation at 156 MHz.These results clearly demonstrate the high potential of our resonant excitation scheme,which can pave the way for compact electrically driven quantum light sources with excellent quantum properties to enable the implementation of advanced quantum communication protocols. | Sören Kreinberg Tomislav Grbešić Max Strauß Alexander Carmele Monika Emmerling Christian Schneider Sven Höfling Xavier Porte Stephan Reitzenstein | 2018 | Light(Science & Applications)2018，7，1： | 0 |
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