Dual-resonance single-beam triaxial spin-exchange relaxation-free magnetometer.

IF 3.3 2区 物理与天体物理 Q2 OPTICS
Optics express Pub Date : 2025-09-08 DOI:10.1364/OE.568707
Guiying Zhang, Wenyue Yu, Yisa Gao, Fan Wang, Qing Zhang, Qiang Lin
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引用次数: 0

Abstract

Triaxial measurement of the magnetic field has been proven to be advantageous in magnetoencephalography applications. To achieve triaxial measurement, we develop a single-beam three-axis spin-exchange relaxation-free (SERF) magnetometer in this study. Here, the ability of three-axis measurement is based on a dual-resonance effect discovered, to the best of our knowledge, for the first time in the SERF regime. By applying a rotating field with a frequency of a few hundred Hz, two resonances, i.e., parametric resonance and Mz resonance, are excited simultaneously. The parametric resonance enables field measurement in x and y directions, while the Mz resonance enables field measurement in the z direction. Magnetic field sensitivities of about 40 fT/Hz1/2 in x- and y-axes and about 50 fT/Hz1/2 in the z-axis are achieved.

双共振单束三轴自旋交换无松弛磁强计。
磁场的三轴测量已被证明在脑磁图应用中是有利的。为了实现三轴测量,我们开发了一种单光束三轴自旋交换无弛豫(SERF)磁强计。在这里,三轴测量的能力是基于双共振效应发现的,据我们所知,这是第一次在SERF制度。通过施加频率为几百Hz的旋转场,可以同时激发参数共振和Mz共振两种共振。参数共振可以实现x和y方向的场测量,而Mz共振可以实现z方向的场测量。在x和y轴上的磁场灵敏度约为40 fT/Hz1/2,在z轴上的磁场灵敏度约为50 fT/Hz1/2。
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来源期刊
Optics express
Optics express 物理-光学
CiteScore
6.60
自引率
15.80%
发文量
5182
审稿时长
2.1 months
期刊介绍: Optics Express is the all-electronic, open access journal for optics providing rapid publication for peer-reviewed articles that emphasize scientific and technology innovations in all aspects of optics and photonics.
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