EIT-based Vector Magnetometry in Linear Polarized Light

Details EIT-based Vector Magnetometry in Linear Polarized Light EIT-based Vector Magnetometry in Linear Polarized Light

2010-04-22

arxiv.org/abs/1004.3969v5

Physics

Atomic Physics

8 pages, 7 figures

Scientific paper

We develop a generalized principle of EIT vector magnetometry based on high-contrast EIT-resonances and the symmetry of atom-light interaction in the linearly polarized bichromatic fields. Operation of such vector magnetometer on the D1 line of 87Rb has been demonstrated. The proposed compass-magnetometer has an increased immunity to shifts produced by quadratic Zeeman and ac-Stark effects, as well as by atom-buffer gas and atom-atom collisions. In our proof-of-principle experiment the detected sensitivity to magnetic field orientation is 10^{-3} deg/Hz^{1/2}, which is limited by laser intensity fluctuations, light polarization quality, and the magnitude of the magnetic field.

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