High-timing-precision detection of single X-ray photons by superconducting nanowires

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外文摘要：Precisely acquiring the timing information of individual X-ray photons is important in both fundamental research and practical applications.The timing precision of commonly used X-ray single-photon detectors remains in the range of one hundred picoseconds to microseconds.In this work,we report on high-timing-precision detection of single X-ray photons through the fast transition to the normal state from the superconductive state of superconducting nanowires.We successfully demonstrate a free-running X-ray single-photon detector with a timing resolution of 20.1 ps made of 100-nm-thick niobium nitride film with an active area of 50 μm by 50 μm.By using a repeated differential timing measurement on two adjacent X-ray single-photon detectors,we demonstrate a precision of 0.87 ps in the arrival-time difference of X-ray photon measurements.Therefore,our work significantly enhances the timing precision in X-ray photon counting,opening a new niche for ultrafast X-ray photonics and many associated applications.

外文关键词：

single-photon detectiontiming precisionsuperconductorultrafast phenomenonpulsar X-ray navigation

作者：

Shuya Guo、Jingrou Tan、Hengbin Zhang、Jinguang Wang、Tianhao Ji、Labao Zhang、Xiaolong Hu、Jian Chen、Jun Xie、Kai Zou、Yun Meng、Xiaomin Bei、Ling-An Wu、Qi Chen、Hao Wang、Xuecou Tu、Xiaoqing Jia、Qing-Yuan Zhao、Lin Kang、Peiheng Wu

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作者单位：

Research Institute of Superconductor Electronics,Nanjing University,Nanjing 210093,China

Qian Xuesen Laboratory of Space Technology,Beijing 100094,China

Beijing National Laboratory of Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China

Hefei National Laboratory,Hefei 230088,China

School of Precision Instrument and Optoelectronic Engineering,Tianjin University,Tianjin 300072,China

Key Laboratory of Optoelectronic Information Science and Technology,Ministry of Education,Tianjin 300072,China

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基金：

National Key R&D Program of ChinaNational Key R&D Program of ChinaInnovation Program for Quantum Science and TechnologyNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaKey-Area Research and Development Program of Guangdong ProvincePriority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)Jiangsu Provincial Key Laboratory of Advanced Manipulating Technique of Electromagnetic Waves

项目编号：

2017YFB05033002017YFA03040022021ZD03034011203300261975229621012406207121862071214618012062020B0303020001

出版年：

2024

DOI：

10.1093/nsr/nwad102

国家科学评论(英文版)

CSTPCD

ISSN：

年,卷(期)：2024.11(1)

参考文献量50