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Type: Journal article
Title: A dual-axis, high-sensitivity atomic magnetometer
Author: Li, R.
Quan, W.
Fan, W.
Xing, L.
Wang, Z.
Zhai, Y.
Fang, J.
Citation: Acta Physica Sinica, 2017; 26(12):120702-1-120702-5
Publisher: IOP Publishing
Issue Date: 2017
ISSN: 1674-1056
Statement of
Rujie Li, Wei Quan, Wenfeng Fan, Li Xing, Zhuo Wang, Yueyang Zhai and Jiancheng Fang
Abstract: Atomic magnetometer (AM) operated in a spin-exchange relaxation-free (SERF) regime features superior sensitivity and non-cryogenic operation, and thus is competitive with the best superconducting quantum interference devices. Previously, SERF AM with fT/Hz1/2 level sensitivity commonly acted as a single-axis sensor. Here we demonstrate a dual-axis SERF AM capable of simultaneously and independently detecting x- and y-field components with a sensitivity of 20 fT/Hz1/2. As there is no necessity to worry about the cross-talk effects arising from field modulations, the dual-axis scheme proposed here is of particular interest to AM array and hence the biomagnetic applications.
Keywords: Optically pumped magnetometers; multi-axis field measurements; high-sensitivity field measurements; polarized atoms
Rights: © 2017 Chinese Physical Society and IOP Publishing Ltd.
DOI: 10.1088/1674-1056/26/12/120702
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