Parametric resonance magnetometer based on elliptically polarized light yielding three-axis measurement with isotropic sensitivity
Résumé
We present here a parametric resonance magnetometer scheme based on elliptically polarized pumping light and two radio-frequency fields applied along the two optical pumping directions. At optimum ellipticity and radio-frequency fields amplitudes the three components of the magnetic field are measured with an isotropic sensitivity. Compared to the usual alignment-based parametric resonance magnetometers, the sensitivity is degraded by a factor 2 for two components of the magnetic field but improved by a factor 9 for the third one. The open-loop bandwidth was measured to be greater than 1 kHz for the three axes. This magnetometer configuration could be particularly interesting for geophysics and biomedical imaging.
Domaines
Energie électriqueOrigine | Fichiers produits par l'(les) auteur(s) |
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