IEEE Transactions on Instrumentation and Measurement

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

Ricardo Jiménez-Martínez, W. C. Griffith, Ying-Ju Wang, Svenja A. Knappe, John E. Kitching, K. Smith, Mark D. Prouty

Published Sep 18, 2009• 83 citations

Abstract

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.

DOI: 10.1109/tim.2009.2023829

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