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Zhang R, Ding Y, Yang Y, Zheng Z, Chen J, Peng X, Wu T, Guo H. Active Magnetic-Field Stabilization with Atomic Magnetometer. SENSORS 2020; 20:s20154241. [PMID: 32751508 PMCID: PMC7435849 DOI: 10.3390/s20154241] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/13/2020] [Accepted: 07/22/2020] [Indexed: 11/16/2022]
Abstract
A magnetically-quiet environment is important for detecting faint magnetic-field signals or nonmagnetic spin-dependent interactions. Passive magnetic shielding using layers of large magnetic-permeability materials is widely used to reduce the magnetic-field noise. The magnetic-field noise can also be actively monitored with magnetometers and then compensated, acting as a complementary method to the passive shielding. We present here a general model to quantitatively depict and optimize the performance of active magnetic-field stabilization and experimentally verify our model using optically-pumped atomic magnetometers. We experimentally demonstrate a magnetic-field noise rejection ratio of larger than ∼800 at low frequencies and an environment with a magnetic-field noise floor of ∼40 fT/Hz1/2 in unshielded Earth's field. The proposed model provides a general guidance on analyzing and improving the performance of active magnetic-field stabilization with magnetometers. This work offers the possibility of sensitive detections of magnetic-field signals in a variety of unshielded natural environments.
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Affiliation(s)
- Rui Zhang
- College of Liberal Arts and Sciences, and Interdisciplinary Center for Quantum Information, National University of Defense Technology, Changsha 410073, China;
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, and Center for Quantum Information Technology, Peking University, Beijing 100871, China; (Y.D.); (Y.Y.); (Z.Z.); (J.C.); (X.P.); (T.W.)
| | - Yudong Ding
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, and Center for Quantum Information Technology, Peking University, Beijing 100871, China; (Y.D.); (Y.Y.); (Z.Z.); (J.C.); (X.P.); (T.W.)
| | - Yucheng Yang
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, and Center for Quantum Information Technology, Peking University, Beijing 100871, China; (Y.D.); (Y.Y.); (Z.Z.); (J.C.); (X.P.); (T.W.)
| | - Zhaoyu Zheng
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, and Center for Quantum Information Technology, Peking University, Beijing 100871, China; (Y.D.); (Y.Y.); (Z.Z.); (J.C.); (X.P.); (T.W.)
| | - Jingbiao Chen
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, and Center for Quantum Information Technology, Peking University, Beijing 100871, China; (Y.D.); (Y.Y.); (Z.Z.); (J.C.); (X.P.); (T.W.)
| | - Xiang Peng
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, and Center for Quantum Information Technology, Peking University, Beijing 100871, China; (Y.D.); (Y.Y.); (Z.Z.); (J.C.); (X.P.); (T.W.)
| | - Teng Wu
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, and Center for Quantum Information Technology, Peking University, Beijing 100871, China; (Y.D.); (Y.Y.); (Z.Z.); (J.C.); (X.P.); (T.W.)
| | - Hong Guo
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, and Center for Quantum Information Technology, Peking University, Beijing 100871, China; (Y.D.); (Y.Y.); (Z.Z.); (J.C.); (X.P.); (T.W.)
- Correspondence:
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Sakamoto Y, Bidinosti CP, Ichikawa Y, Sato T, Ohtomo Y, Kojima S, Funayama C, Suzuki T, Tsuchiya M, Furukawa T, Yoshimi A, Ino T, Ueno H, Matsuo Y, Fukuyama T, Asahi K. Development of high-homogeneity magnetic field coil for 129Xe EDM experiment. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s10751-014-1109-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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