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Uncooled, Millimeter-Scale Atomic Magnetometers with Femtotesla Sensitivity



John E. Kitching, Svenja A. Knappe, William C. Griffith, Jan Preusser, V Gerginov, Peter D. Schwindt, Vishal Shah, Ricardo Jimenez Martinez


We summarize recent results at NIST to develop high-performance yet highly miniaturized magnetic sensors based on atomic vapors confined in microfabricated alkali vapor cells. These sensors currently achieve sensitivities in the range of a few tens of femtotesla in a 1 Hz bandwidth in detection volumes of about 1 mm3. The require no cooling and only a small amount of heating, making them ideal for deployment in remote, power starved locations. The low potential cost of arrays of these sensors.
Proceedings Title
Proc. 2009 IEEE Sensors
Conference Dates
October 25-28, 2009
Conference Location


atomic magnetometer, magnetic sensors, optical pumping, SERF


Kitching, J. , Knappe, S. , Griffith, W. , Preusser, J. , Gerginov, V. , Schwindt, P. , Shah, V. and Jimenez, R. (2009), Uncooled, Millimeter-Scale Atomic Magnetometers with Femtotesla Sensitivity, Proc. 2009 IEEE Sensors , Christchurch, -1, [online], (Accessed June 15, 2024)


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Created October 26, 2009, Updated February 19, 2017