Effects of Multiple Factors on the Performance of Portable Self-Oscillating Laser Pumped Atomic Magnetometer

Self-oscillating magnetometers with high sensitivity are widely used in fields such as biomedicine and remote sensing. However, few studies comprehensively consider the effect of different parameters on their performance. We examined the effects of laser intensity, resonance detuning, radio frequenc...

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Bibliographic Details
Published in:IEEE sensors journal 2024-04, Vol.24 (7), p.9800-9808
Main Authors: Jin, Kai, Geng, Xu-Xing, Xiao, Jian-Feng, Liang, Zhi, Tang, Wang-Wang, Huang, Guang-Ming, Li, Gao-Xiang, Wu, Shao-Ping, Yang, Guo-Qing, Liang, Shang-Qing
Format: Article
Language:English
Subjects:
Absorption spectra
Absorption spectrum
Atomic beams
Lasers
Magnetic fields
Magnetic resonance
magnetic resonance signal
Magnetometers
Magnetosphere
multipole moment master equations
Multipoles
optically pumped magnetometer
Parameters
Performance evaluation
Portability
Pump lasers
Radio frequency
Remote sensing
Self oscillation
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Summary:Self-oscillating magnetometers with high sensitivity are widely used in fields such as biomedicine and remote sensing. However, few studies comprehensively consider the effect of different parameters on their performance. We examined the effects of laser intensity, resonance detuning, radio frequency (RF) magnetic field, and atomic cell on the performance of portable self-oscillating magnetometers. To obtain the atomic absorption spectrum, we solved the system's master equation in the multipole moment form. In theory, we analyse the influencing factors on the atomic magnetic resonance (AMR) signal. In the experiment, we artificially varied the relevant parameters to control the trends of changes in the atomic absorption spectra and evaluated their performance. The results are beneficial for optimizing the parameters of portable self-oscillating magnetometers with a laser pump-probe structure.
ISSN:1530-437X
1558-1748
DOI:10.1109/JSEN.2024.3365701