On-Demand Single Photons with High Extraction Efficiency and Near-Unity Indistinguishability from a Resonantly Driven Quantum Dot in a Micropillar

被引：717

作者：

Ding, Xing ^{[1
,2
,3
,4
]}

He, Yu ^{[1
,2
,3
,4
]}

Duan, Z. -C. ^{[1
,2
,3
,4
]}

Gregersen, Niels ^{[5
]}

Chen, M. -C. ^{[1
,2
,3
,4
]}

Unsleber, S. ^{[6
,7
]}

Maier, S. ^{[6
,7
]}

Schneider, Christian ^{[6
,7
]}

Kamp, Martin ^{[6
,7
]}

Hoefling, Sven ^{[1
,2
,6
,7
,8
]}

Lu, Chao-Yang ^{[1
,2
,3
,4
]}

Pan, Jian-Wei ^{[1
,2
,3
,4
]}

机构：

[1] Univ Sci & Technol China, Shanghai Branch, Natl Lab Phys Sci Microscale, Shanghai 201315, Peoples R China

[2] Univ Sci & Technol China, Dept Modern Phys, Shanghai 201315, Peoples R China

[3] Univ Sci & Technol China, CAS Ctr Excellence & Synerget Innovat, Ctr Quantum Informat & Quantum Phys, Hefei 230026, Anhui, Peoples R China

[4] CAS Alibaba Quantum Comp Lab, Shanghai 201315, Peoples R China

[5] Tech Univ Denmark, Dept Photon Engn, DTU Fotonik, DK-2800 Lyngby, Denmark

[6] Univ Wurzburg, Tech Phys, Phys Inst, D-97074 Wuzburg, Germany

[7] Univ Wurzburg, Wilhelm Conrad Rontgen Ctr Complex Mat Syst, D-97074 Wuzburg, Germany

[8] Univ St Andrews, Sch Phys & Astron, SUPA, St Andrews KY16 9SS, Fife, Scotland

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 116卷 / 02期

基金：

中国国家自然科学基金;

关键词：

BRIGHT; GENERATION; INTERFERENCE; DEVICE; LIGHT; CHIP;

D O I：

10.1103/PhysRevLett.116.020401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Scalable photonic quantum technologies require on-demand single-photon sources with simultaneously high levels of purity, indistinguishability, and efficiency. These key features, however, have only been demonstrated separately in previous experiments. Here, by s-shell pulsed resonant excitation of a Purcell-enhanced quantum dot-micropillar system, we deterministically generate resonance fluorescence single photons which, at p pulse excitation, have an extraction efficiency of 66%, single-photon purity of 99.1%, and photon indistinguishability of 98.5%. Such a single-photon source for the first time combines the features of high efficiency and near-perfect levels of purity and indistinguishabilty, and thus opens the way to multiphoton experiments with semiconductor quantum dots.

引用

页数：6

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