A deterministic quantum dot micropillar single photon source with >65% extraction efficiency based on fluorescence imaging method

Shunfa Liu; Yuming Wei; Rongling Su; Rongbin Su; Ben Ma; Zesheng Chen; Haiqiao Ni; Zhichuan Niu; Ying Yu; Yujia Wei; Xuehua Wang; Siyuan Yu

doi:10.1038/s41598-017-13433-w

Scientific Reports (Oct 2017)

A deterministic quantum dot micropillar single photon source with >65% extraction efficiency based on fluorescence imaging method

Shunfa Liu,
Yuming Wei,
Rongling Su,
Rongbin Su,
Ben Ma,
Zesheng Chen,
Haiqiao Ni,
Zhichuan Niu,
Ying Yu,
Yujia Wei,
Xuehua Wang,
Siyuan Yu

Affiliations

Shunfa Liu: State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, School of Physics, Sun Yat-sen University
Yuming Wei: State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, School of Physics, Sun Yat-sen University
Rongling Su: State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, School of Physics, Sun Yat-sen University
Rongbin Su: State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, School of Physics, Sun Yat-sen University
Ben Ma: State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912
Zesheng Chen: State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912
Haiqiao Ni: State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912
Zhichuan Niu: State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912
Ying Yu: State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, School of Physics, Sun Yat-sen University
Yujia Wei: State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, School of Physics, Sun Yat-sen University
Xuehua Wang: State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, School of Physics, Sun Yat-sen University
Siyuan Yu: State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, School of Physics, Sun Yat-sen University

DOI: https://doi.org/10.1038/s41598-017-13433-w
Journal volume & issue: Vol. 7, no. 1
pp. 1 – 7

Abstract

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Abstract We report optical positioning of single quantum dots (QDs) in planar distributed Bragg reflector (DBR) cavity with an average position uncertainty of ≈20 nm using an optimized photoluminescence imaging method. We create single-photon sources based on these QDs in determined micropillar cavities. The brightness of the QD fluorescence is greatly enhanced on resonance with the fundamental mode of the cavity, leading to an high extraction efficiency of 68% ± 6% into a lens with numerical aperture of 0.65, and simultaneously exhibiting low multi-photon probability (g(2)(0) = 0.144 ± 0.012) at this collection efficiency.

Published in Scientific Reports

ISSN: 2045-2322 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Medicine; Science
Website: https://www.nature.com/srep/

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