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Sensitivity Comparison of Mx and Frequency-Modulated Bell–Bloom Cs Magnetometers in a Microfabricated Cell

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7 Author(s)
Jimenez-Martinez, R. ; Dept. of Phys., Univ. of Colorado at Boulder, Boulder, CO, USA ; Griffith, W.C. ; Ying-Ju Wang ; Knappe, S.
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We compare the sensitivity performance of two optically pumped atomic magnetometers based on the Mx and frequency-modulated bell-bloom configurations. The Cs magnetometers are implemented using a millimeter-scale microfabricated vapor cell. It is found that the Bell-Bloom magnetometer yields sensitivities similar to those of the Mx magnetometer when operated under equally optimized conditions. The Bell-Bloom approach offers several attractive features over the Mx approach for chip-scale magnetometer instrumentation.

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Instrumentation and Measurement, IEEE Transactions on  (Volume:59 ,  Issue: 2 )