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Main Title: Efficient single-photon source based on a deterministically fabricated single quantum dot - microstructure with backside gold mirror
Author(s): Fischbach, Sarah
Kaganskiy, Arsenty
Tauscher, Esra Burcu Yarar
Gericke, Fabian
Thoma, Alexander
Schmidt, Ronny
Strittmatter, André
Heindel, Tobias
Reitzenstein, Stephan
Type: Article
Language Code: en
Abstract: We present an efficient broadband single-photon source which is fabricated by a flip-chip gold-bonding technique and in-situ electron beam lithography. The device comprises a single InGaAs quantum dot that is centered at the bottom of a monolithic mesa structure and located above a gold mirror for enhanced photon-extraction efficiency. We show a photon-extraction efficiency of ηext=(18±2) % into a numerical aperture of 0.4 and a high suppression of multi-photon events from this source with g(2)(0)=0.015±0.009. Our deterministic device with a backside gold mirror can be combined with electrical contacts and piezo-tuning capabilities in future refinements, which represents an important step towards a spectrally tunable plug-and-play quantum-light source with broadband enhancement for photonic quantum networks.
Issue Date: 5-Jul-2017
Date Available: 17-Feb-2020
DDC Class: 530 Physik
Subject(s): crystal microstructure
electron beam lithography
gallium arsenide
III-V semiconductors
indium compounds
semiconductor devices
semiconductor growth
semiconductor quantum dots
Sponsor/Funder: DFG, SFB 787, Halbleiter - Nanophotonik: Materialien, Modelle, Bauelemente
BMBF, 03V0630TIB, Entwicklung einer Halbleiterbasierten Einzelphotonenquelle für die Quanteninformationstechnologie
Journal Title: Applied Physics Letters
Publisher: American Institute of Physics (AIP)
Publisher Place: Melville, NY
Volume: 111
Issue: 1
Article Number: 011106
Publisher DOI: 10.1063/1.4991389
EISSN: 1077-3118
ISSN: 0003-6951
Notes: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Appl. Phys. Lett. 111, 011106 (2017) and may be found at
Appears in Collections:AG Optoelektronik und Quantenbauelemente » Publications

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