A 100-pixel photon-number-resolving detector unveiling photon statistics

被引：68

作者：

Cheng, Risheng ^{[1
]}

Zhou, Yiyu ^{[1
,2
]}

Wang, Sihao ^{[1
]}

Shen, Mohan ^{[1
]}

Taher, Towsif ^{[1
]}

Tang, Hong X. ^{[1
,2
]}

机构：

[1] Yale Univ, Dept Elect Engn, New Haven, CT 06520 USA

[2] Yale Univ, Yale Quantum Inst, New Haven, CT 06520 USA

来源：

NATURE PHOTONICS | 2023年 / 17卷 / 01期

基金：

美国国家科学基金会;

关键词：

EFFICIENCY; TIME;

D O I：

10.1038/s41566-022-01119-3

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Single-photon detectors are ubiquitous in quantum information science and quantum sensing. They are key enabling technologies for numerous scientific discoveries and fundamental tests of quantum optics. Photon-number-revolving detectors are the ultimate measurement tool of light; however, few detectors so far can provide high-fidelity photon number resolution at few-photon levels. Here we demonstrate an on-chip detector that can resolve up to 100 photons by spatiotemporally multiplexing an array of superconducting nanowires along a single optical waveguide. The unparalleled photon number resolution paired with the high-speed response exclusively allows us to unveil the quantum photon statistics of a true thermal light source at an unprecedented level, which is realized by direct measurement of the higher-order correlation function g((N)) (with values of N up to 15), observation of photon-subtraction-induced photon number enhancement and quantum-limited state discrimination against a coherent light source. Our detector provides a viable route towards various important applications, including photonic quantum computation and quantum metrology.

引用

页码：112 / +

页数：13

共 58 条

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