Micron-resolved quantum precision measurement of magnetic field at the Tesla level

安思瀚 ¹葛仕宇 ¹卢文韬 ²陈国彬 ³夏圣开 ⁴陈爱庆 ¹王成坤 ¹虞林嫣 ¹张致强 ¹汪洋 ⁵唐贵进 ¹程华富 ⁶杜关祥¹

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作者信息

1. College of Telecommunications and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China
2. Portland Institute,Nanjing University of Posts and Telecommunications,Nanjing 210023,China
3. The School of Mechanical and Electrical Engineering,Suqian College,Suqian 223800,China
4. School of Computer Science,Nanjing University of Posts and Telecommunications,Nanjing 210023,China
5. School of Science,Nanjing University of Posts and Telecommunications,Nanjing 210023,China
6. Yichang Testing Technique R&D Institute,Yichang 443003,China
折叠

Abstract

We develop a quantum precision measurement method for magnetic field at the Tesla level by utilizing a fiber diamond magnetometer.Central to our system is a micron-sized fiber diamond probe positioned on the surface of a coplanar waveg-uide made of nonmagnetic materials.Calibrated with a nuclear magnetic resonance magnetometer,this probe demonstrates a broad magnetic field range from 10 mT to 1.5 T with a nonlinear error better than 0.0028％under a standard magnetic field generator and stability better than 0.0012％at a 1.5 T magnetic field.Finally,we demonstrate quantitative mapping of the vector magnetic field on the surface of a permanent magnet using the diamond magnetometer.

Key words

nitrogen-vacancy center/fiber diamond magnetometer/precision measurement

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出版年

2024

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

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