Cs D$_1$ 线双轴 Hanle 磁强计的多参数研究
Multi-parameter study of two-axis Hanle magnetometry on the Cs D$_1$ line
AI总结：
本研究通过实验与理论建模，系统分析了各参数对基于 Cs D$_1$ 跃迁的双轴 Hanle 磁强计信号特性的影响，利用偏振切换与信号相减获取零中心色散信号，并据此优化了磁强计性能。
摘要：
我们通过实验和理论研究了各种参数对基于 Cs D$_1$ 跃迁的双轴 Hanle 磁强计信号特性的影响。该磁强计由线偏振的泵浦光和探测光照射，光束以特定方式穿过吸收池，使得探测光偏振矢量可在 $zy$ 平面和 $xz$ 平面之间切换，从而分别测量沿 $x$ 轴和 $y$ 轴的磁场。当探测光偏振进一步关于泵浦光偏振矢量进行反射，并将得到的两个吸收信号相减时，可获得以零为中心的色散信号。这些色散信号能够被理论模型准确复现，实验与建模信息被用于优化磁强计特性。
英文摘要：
We have studied experimentally and theoretically the impact of various parameters on the characteristics of signals from a two-axis Hanle magnetometer based on the Cs D$_1$ transition illuminated by linearly polarized pump and probe beams propagating through the cell in such a way that the probe polarization vector can be switched between the $zy$- and the $xz$-plane in order to measure the magnetic field along the $x$- and $y$-axes, respectively. When the probe polarization additionally is reflected about the pump polarization vector and the two resulting absorption signals are subtracted, dispersion signals centered around zero are obtained. These dispersion signals can be reproduced accurately by the theoretical model, and the information from experiment and modeling used to optimize the magnetometer characteristics.
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