Integrated room temperature single-photon source for quantum key distribution

被引：26

作者：

Zeng, Helen Zhi Jie ^{[1
]}

Ngyuen, Minh Anh Phan ^{[1
]}

Ai, Xiaoyu ^{[2
]}

Bennet, Adam ^{[3
]}

Solntsev, Alexander S. ^{[1
]}

Laucht, Arne ^{[2
]}

Al-Juboori, Ali ^{[2
]}

Toth, Milos ^{[1
,4
]}

Mildren, Richard P. ^{[3
]}

Malaney, Robert ^{[2
]}

Aharonovich, Igor ^{[1
,4
]}

机构：

[1] Univ Technol Sydney, Fac Sci, Sch Math & Phys Sci, Ultimo, NSW 2007, Australia

[2] Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia

[3] Macquarie Univ, MQ Photon Res Ctr, Dept Phys & Astron, Sydney, NSW 2109, Australia

[4] Univ Technol Sydney, ARC Ctr Excellence Transformat Meta Opt Syst TMOS, Ultimo, NSW, Australia

来源：

OPTICS LETTERS | 2022年 / 47卷 / 07期

关键词：

HEXAGONAL BORON-NITRIDE; EMITTERS;

D O I：

10.1364/OL.454450

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

High-purity single-photon sources (SPS) that can operate at room temperature are highly desirable for a myriad of applications, including quantum photonics and quantum key distribution. In this work, we realize an ultra-bright solid-state SPS based on an atomic defect in hexagonal boron nitride (hBN) integrated with a solid immersion lens (SIL). The SIL increases the source efficiency by a factor of six, and the integrated system is capable of producing over ten million single photons per second at room temperature. Our results are promising for practical applications of SPS in quantum communication protocols. (C) 2022 Optica Publishing Group

引用

页码：1673 / 1676

页数：4

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