Optically pumped quantum Mx–MR magnetometer with high oscillating magnetic field

doi:10.1088/1674-1056/24/8/083202

中国物理B ›› 2015, Vol. 24 ›› Issue (8): 83202-083202.doi: 10.1088/1674-1056/24/8/083202

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Optically pumped quantum M_x–M_R magnetometer with high oscillating magnetic field

丁志超^{a b}, 袁杰^{a b}, 汪之国^{a b}, 杨开勇^{a b}, 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

收稿日期:2015-01-20 修回日期:2015-03-09 出版日期:2015-08-05 发布日期:2015-08-05
基金资助:
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).

Optically pumped quantum M_x–M_R 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

Received:2015-01-20 Revised:2015-03-09 Online:2015-08-05 Published:2015-08-05
Contact: Yuan Jie, Wang Zhi-Guo E-mail:jieyuan@nudt.edu.cn;maxborn@nudt.edu.cn
Supported by:
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).

摘要/Abstract

摘要： 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 M_x–M_R magnetometer operates on condition that the intensity of oscillating magnetic field is smaller than this specific value, and the M_x–M_R magnetometer can possess a much higher signal-to-noise ratio. The experimental result shows that the sensitivity of M_x–M_R magnetometer can be improved by an order of magnitude under this condition.

关键词: magnetic moment, linewidth, M_x–, M_R magnetometer, sensitivity

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 M_x–M_R magnetometer operates on condition that the intensity of oscillating magnetic field is smaller than this specific value, and the M_x–M_R magnetometer can possess a much higher signal-to-noise ratio. The experimental result shows that the sensitivity of M_x–M_R magnetometer can be improved by an order of magnitude under this condition.

Key words: magnetic moment, linewidth, M_x–M_R magnetometer, sensitivity

中图分类号: (Level crossing and optical pumping)

32.80.Xx

07.55.Ge (Magnetometers for magnetic field measurements) 07.55.Jg (Magnetometers for susceptibility, magnetic moment, and magnetization measurements)

丁志超, 袁杰, 汪之国, 杨开勇, 罗晖. Optically pumped quantum M_x–M_R magnetometer with high oscillating magnetic field[J]. 中国物理B, 2015, 24(8): 83202-083202.

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 M_x–M_R magnetometer with high oscillating magnetic field[J]. Chin. Phys. B, 2015, 24(8): 83202-083202.

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Optically pumped quantum M_x–M_R magnetometer with high oscillating magnetic field

Optically pumped quantum M_x–M_R magnetometer with high oscillating magnetic field

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