Experimental study demonstrates high-sensitivity atomic magnetometry using autonomous laser frequency stabilization, indicating potential for compact magnetic sensors.
The operation of a high sensitive atomic magnetometer using resonant elliptically polarized light is demonstrated. The experimental geometry allows autonomous frequency stabilization of the laser, thereby offers compact operation of the overall device. The magnetometry is based on measurement of the zero magnetic field resonance in degenerate two level system using polarimetric detection and has a preliminary sensitivity of <10 pT/Hz1/2 @ 1 Hz.
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Pradhan et al. (2014) studied this question.
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