Efficient single-photon source based on a deterministically fabricated single quantum dot - microstructure with backside gold mirror

被引：24

作者：

Fischbach, Sarah ^{[1
]}

Kaganskiy, Arsenty ^{[1
]}

Tauscher, Esra Burcu Yarar ^{[1
]}

Gericke, Fabian ^{[1
]}

Thoma, Alexander ^{[1
]}

Schmidt, Ronny ^{[1
]}

Strittmatter, Andre ^{[1
,2
]}

Heindel, Tobias ^{[1
]}

Rodt, Sven ^{[1
]}

Reitzenstein, Stephan ^{[1
]}

机构：

[1] Tech Univ Berlin, Inst Festkorperphys, Hardenbergstr 36, D-10623 Berlin, Germany

[2] Otto von Guericke Univ, Univ Pl 2, D-39106 Magdeburg, Germany

来源：

APPLIED PHYSICS LETTERS | 2017年 / 111卷 / 01期

关键词：

LIGHT-EMITTING-DIODES; NANOWIRE;

D O I：

10.1063/1.4991389

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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 eta(ext) = (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. Published by AIP Publishing.

引用

页数：4

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