Magnetometry Based on Nonlinear Magneto-Optical Rotation with Amplitude-Modulated Light

Details Magnetometry Based on Nonlinear Magneto-Optical Rotation with Amplitude-Modulated Light Magnetometry Based on Nonlinear Magneto-Optical Rotation with Amplitude-Modulated Light

2007-08-27

arxiv.org/abs/0708.3488v2

Physics

Atomic Physics

Submitted to Journal of Applied Physics 8 pages, 8 figures

Scientific paper

10.1063/1.2844494

We report on an all-optical magnetometric technique based on nonlinear magneto-optical rotation with amplitude-modulated light. The method enables sensitive magnetic-field measurements in a broad dynamic range. We demonstrate the sensitivity of $4.3\times10^{-9}$ G/$\sqrt{\text{Hz}}$ at 10 mG and the magnetic field tracking in a range of 40 mG. The fundamental limits of the method sensitivity and factors determining current performance of the magnetometer are discussed.

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