Multichannel optical atomic magnetometer operating in unshielded environment
Giuseppe Bevilacqua, Valerio Biancalana, Piero Chessa, Yordanka, Dancheva
TL;DR
This paper presents a multi-channel atomic magnetometer that operates effectively in unshielded environments, achieving high sensitivity through advanced optical pumping and polarimetry techniques.
Contribution
It introduces a novel multi-channel magnetometer design suitable for unshielded environments, with detailed technical implementation and performance characterization.
Findings
Sensitivity of 100fT/Hz^1/2 in difference mode
Operates effectively without magnetic shielding
Uses D1 optical pumping and D2 polarimetry
Abstract
A multi-channel atomic magnetometer operating in an unshielded environment is described and characterised. The magnetometer is based on D1 optical pumping and D2 polarimetry of Cs vapour contained in gas-buffered cells. Several technical implementations are described and discussed in detail. The demonstrated sensitivity of the setup is 100fT/Hz^1/2 when operating in the difference mode.
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