A high-sensitivity push-pull magnetometer
Atomic Physics
2015-06-18 v1 Instrumentation and Detectors
Abstract
We describe our approach to atomic magnetometry based on the push-pull optical pumping technique. Cesium vapor is pumped and probed by a resonant laser beam whose circular polarization is modulated synchronously with the spin evolution dynamics induced by a static magnetic field. The magnetometer is operated in a phase-locked loop, and it has an intrinsic sensitivity below 20fT/\sqrt(Hz) using a room temperature paraffin-coated cell. We use the magnetometer to monitor magnetic field fluctuations with a sensitivity of 300fT/\sqrt(Hz).
Cite
@article{arxiv.1312.3567,
title = {A high-sensitivity push-pull magnetometer},
author = {E. Breschi and Z. D. Grujic and P. Knowles and A. Weis},
journal= {arXiv preprint arXiv:1312.3567},
year = {2015}
}
Comments
submitted to Applied Physics Letter