Single-photon imaging over 200 km

被引：272

作者：

Li, Zheng-Ping ^{[1
,2
,3
,4
]}

Ye, Jun-Tian ^{[1
,2
,3
,4
]}

Huang, Xin ^{[1
,2
,3
,4
]}

Jiang, Peng-Yu ^{[1
,2
,3
,4
]}

Cao, Yuan ^{[1
,2
,3
,4
]}

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

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

Zhang, Jun ^{[1
,2
,3
,4
]}

Zhang, Qiang ^{[1
,2
,3
,4
]}

Peng, Cheng-Zhi ^{[1
,2
,3
,4
]}

Xu, Feihu ^{[1
,2
,3
,4
]}

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

机构：

[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China

[2] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China

[3] Univ Sci & Technol China, CAS Ctr Excellence Quantum Informat & Quantum Phy, Shanghai Branch, Shanghai 201315, Peoples R China

[4] Shanghai Res Ctr Quantum Sci, Shanghai 201315, Peoples R China

来源：

OPTICA | 2021年 / 8卷 / 03期

基金：

中国国家自然科学基金;

关键词：

LASER TRANSPONDERS; RANGE; FLIGHT; AIRBORNE;

D O I：

10.1364/OPTICA.408657

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Long-range active imaging has widespread applications in remote sensing and target recognition. Single-photon light detection and ranging (lidar) has been shown to have high sensitivity and temporal resolution. On the application front, however, the operating range of practical single-photon lidar systems is limited to about tens of kilometers over the Earth's atmosphere, mainly due to the weak echo signal mixed with high background noise. Here, we present a compact coaxial single-photon lidar system capable of realizing 3D imaging at up to 201.5 km. It is achieved by using high-efficiency optical devices for collection and detection, and what we believe is a new noise-suppression technique that is efficient for long-range applications. We show that photon-efficient computational algorithms enable accurate 3D imaging over hundreds of kilometers with as few as 0.44 signal photons per pixel. The results represent a significant step toward practical, low-power lidar over extra-long ranges. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：344 / 349

页数：6

共 46 条

[1] Quantum-inspired computational imaging [J].