Journal
APPLIED PHYSICS LETTERS
Volume 109, Issue 6, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4960971
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Funding
- Nature Science Foundation of China [61273067, 61074171]
- National Program on Key Basic Research Project of China [2012CB934104]
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A single-beam atomic magnetometer being operated near zero-field and measuring three-axis fields simultaneously is demonstrated. We produce a rotating field on the x-0-y plane with the frequency of 90 Hz and a modulation field in the z axis at 130Hz. The rotating field enables a nonzero z axis output when the transverse fields are zeroed using feedback systems. Based on the phase difference of pi/2, x and y axes fields can be measured using one lock-in amplifier. Magnetic field sensitivities of 300 fT/Hz(1/2) in x and y axes and 3 pT/Hz(1/2) in the z axis are achieved. Published by AIP Publishing.
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