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Optically pumped quantum Mx–MR magnetometer with high oscillating magnetic field |
Ding Zhi-Chao (丁志超)a b, Yuan Jie (袁杰)a b, Wang Zhi-Guo (汪之国)a b, Yang Kai-Yong (杨开勇)a b, Luo Hui (罗晖)a b |
a College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073, China; b Interdisciplinary Center for Quantum Information, National University of Defense Technology, Changsha 410073, China |
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Abstract A dip of the transverse component of the magnetic moment as a function of resonance frequency-detuning will emerge when the intensity of oscillating magnetic field exceeds a specific value, which is demonstrated theoretically and experimentally. The linewidth of magnetic-resonance signal can be much smaller than when the Mx–MR magnetometer operates on condition that the intensity of oscillating magnetic field is smaller than this specific value, and the Mx–MR magnetometer can possess a much higher signal-to-noise ratio. The experimental result shows that the sensitivity of Mx–MR magnetometer can be improved by an order of magnitude under this condition.
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Received: 20 January 2015
Revised: 09 March 2015
Accepted manuscript online:
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PACS:
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32.80.Xx
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(Level crossing and optical pumping)
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07.55.Ge
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(Magnetometers for magnetic field measurements)
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07.55.Jg
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(Magnetometers for susceptibility, magnetic moment, and magnetization measurements)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61475192) and the Science Research Program of National University of Defense Technology, China (Grant No. JC140702). |
Corresponding Authors:
Yuan Jie, Wang Zhi-Guo
E-mail: jieyuan@nudt.edu.cn;maxborn@nudt.edu.cn
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Cite this article:
Ding Zhi-Chao (丁志超), Yuan Jie (袁杰), Wang Zhi-Guo (汪之国), Yang Kai-Yong (杨开勇), Luo Hui (罗晖) Optically pumped quantum Mx–MR magnetometer with high oscillating magnetic field 2015 Chin. Phys. B 24 083202
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