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Main Title: Quantum-optical spectroscopy of a two-level system using an electrically driven micropillar laser as a resonant excitation source
Author(s): Kreinberg, Sören
Grbešić, Tomislav
Strauß, Max
Carmele, Alexander
Emmerling, Monika
Schneider, Christian
Höfling, Sven
Porte, Xavier
Reitzenstein, Stephan
Type: Article
Abstract: 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-β microlaser 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 (g(2)(0)=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.
Subject(s): photonic quantum technology
two-level system
quantum-optical spectroscopy
micropillar laser
quantum dot
semiconductor lasers
Issue Date: 25-Jul-2018
Date Available: 4-May-2020
Language Code: en
DDC Class: 530 Physik
Sponsor/Funder: EC/FP7/615613/EU/External Quantum Control of Photonic Semiconductor Nanostructures/EXQUISITE
DFG, 43659573, SFB 787: Halbleiter - Nanophotonik: Materialien, Modelle, Bauelemente
Journal Title: Light: Science & Applications
Publisher: Springer Nature
Volume: 7
Article Number: 41
Publisher DOI: 10.1038/s41377-018-0045-6
EISSN: 2047-7538
TU Affiliation(s): Fak. 2 Mathematik und Naturwissenschaften » Inst. Festkörperphysik » AG Optoelektronik und Quantenbauelemente
Appears in Collections:Technische Universität Berlin » Publications

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