Real-time electronic longitudinal polarizability closed-loop control method in SERF atomic comagnetometer

被引：0

作者：

Hu, Zeyi ^{[1
,2
,3
]}

Duan, Lihong ^{[1
,2
,3
]}

Cai, Ze ^{[1
,2
,3
]}

Gao, Hang ^{[1
]}

Ma, Lele ^{[1
]}

Huang, Shuo ^{[1
]}

Fan, Wenfeng ^{[1
,2
,3
]}

Quan, Wei ^{[1
,2
,3
,4
]}

机构：

[1] Beihang Univ, Sch Instrumentat & Optoelect Engn, Beijing 100191, Peoples R China

[2] Beihang Univ, Inst Large Scale Sci Facil, Hangzhou 310050, Peoples R China

[3] Beihang Univ, Ctr Zero Magnet Field Sci, Hangzhou 310050, Peoples R China

[4] Hefei Natl Lab, Hefei 230088, Peoples R China

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2025年 / 387卷

关键词：

Atomic spin inertia measurement; Magnetic field modulation; Electronic polarizability stability; Closed-loop control; Long-term stability; DENSITY;

D O I：

10.1016/j.sna.2025.116383

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The electron spin's fluctuation in longitudinal polarizability significantly compromises the long-term stability of inertial measurement systems. Here introduces a real-time closed-loop control method for electron spin polarizability, employing magnetic field modulation, and thoroughly analyzes the system's output responsiveness to changes in electron polarizability. By applying modulated magnetic field, the electron's longitudinal polarizability information is derived from the output signal. Subsequently, stable control of this polarizability is achieved by adjusting the intensity of the Pump optical power density. Experimental results have validated that this new method significantly improves inertial measurement sensitivity. This method is also suitable for the research of optical pump magnetometer and nuclear magnetic resonance comagnetometer.

引用

页数：6

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