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A pulsed scalar optically-pumped magnetometer



Vladislav P. Gerginov, Sean P. Krzyzewski, Svenja A. Knappe


A scalar magnetic field sensor based on 87Rb vapor millimeter-size cell is described. The magnetometer uses co-propagating pump/probe laser beam, amplitude modulation of the pump beam and non-demolition polarization rotation detection of the probe beam. The magnetometer achieves sensitivities of 500 femtoTesla/sqrt(Hz) in a sensitive volume of 33 mm^3. This noise is reduced to 130 femtoTesla/sqrt(Hz), when the magnetometer sensitivity is measured with gradiometric detection in a volume of 16 mm^3.
Optics Letters


Atomic and molecular physics, Atomic Spectroscopy, Sensors


Gerginov, V. , Krzyzewski, S. and Knappe, S. (2017), A pulsed scalar optically-pumped magnetometer, Optics Letters, [online], (Accessed April 18, 2024)
Created June 16, 2017, Updated January 27, 2020