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arXiv · 2111.14481

A measurement method of transverse light-shift in atomic spin co-magnetometer

Li Xing·Wei Quan·Tianxiao Song·Qingzhong Cai·Wen Ye
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Abstract

We disclose a method to obtain the transverse light-shift along the probe light of a single-axis alkali metal-noble gas co-magnetometer. The relationship between transverse compensating field and light-shift is deduced through the steady-state solution of Bloch equations. The variety of probe light intensity is used to obtain the residual magnetic field, and step modulation tests are applied to acquire the total spin-relaxation rate of electron spins and self-compensation point. Finally, the transverse light-shift is reduced from -0.115 nT to -0.039 nT by optimizing the probe light wavelength, and the value of the calibration coefficient can be increased simultaneously.

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Li Xing, Wei Quan, Tianxiao Song, Qingzhong Cai, Wen Ye. 2021-11-29. A measurement method of transverse light-shift in atomic spin co-magnetometer. https://doi.org/10.1007/s00340-022-07791-1

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