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arXiv · 1404.0374

An optically modulated zero-field atomic magnetometer with suppressed spin-exchange broadening

Ricardo Jimenez-Martinez·Svenja Knappe·John Kitching
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Abstract

We demonstrate an optically pumped $^{87}$Rb magnetometer in a microfabricated vapor cell based on a zero-field dispersive resonance generated by optical modulation of the $^{87}$Rb ground state energy levels. The magnetometer is operated in the spin-exchange relaxation-free regime where high magnetic field sensitivities can be achieved. This device can be useful in applications requiring array-based magnetometers where radio frequency magnetic fields can induce cross-talk among adjacent sensors or affect the source of the magnetic field being measured.

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Ricardo Jimenez-Martinez, Svenja Knappe, John Kitching. 2014-04-01. An optically modulated zero-field atomic magnetometer with suppressed spin-exchange broadening. https://doi.org/10.1063/1.4872075

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