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Micron-resolved quantum precision measurement of magnetic field at the Tesla level |
| Si-Han An(安思瀚)1, Shi-Yu Ge(葛仕宇)1, Wen-Tao Lu(卢文韬)2, Guo-Bin Chen(陈国彬)3, Sheng-Kai Xia(夏圣开)4, Ai-Qing Chen(陈爱庆)1, Cheng-Kun Wang(王成坤)1, Lin-Yan Yu(虞林嫣)1, Zhi-Qiang Zhang(张致强)1, Yang Wang(汪洋)5, Gui-Jin Tang(唐贵进)1, Hua-Fu Cheng(程华富)6, and Guan-Xiang Du(杜关祥)1,† |
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 |
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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 waveguide 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.
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Received: 29 July 2024
Revised: 20 September 2024
Accepted manuscript online: 24 September 2024
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PACS:
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03.67.-a
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(Quantum information)
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03.65.Yz
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(Decoherence; open systems; quantum statistical methods)
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75.50.Ww
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(Permanent magnets)
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| Fund: Project supported by the National Key R&D Program of China (Grant No. 2021YFB2012600). We acknowledge calibration support by Tieying Feng of Jiangsu Institute of Metrology. |
Corresponding Authors:
Guan-Xiang Du
E-mail: duguanxiang@njupt.edu.cn
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Cite this article:
Si-Han An(安思瀚), Shi-Yu Ge(葛仕宇), Wen-Tao Lu(卢文韬), Guo-Bin Chen(陈国彬), Sheng-Kai Xia(夏圣开), Ai-Qing Chen(陈爱庆), Cheng-Kun Wang(王成坤), Lin-Yan Yu(虞林嫣), Zhi-Qiang Zhang(张致强), Yang Wang(汪洋), Gui-Jin Tang(唐贵进), Hua-Fu Cheng(程华富), and Guan-Xiang Du(杜关祥) Micron-resolved quantum precision measurement of magnetic field at the Tesla level 2024 Chin. Phys. B 33 120305
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