Efficient technique for measuring transverse relaxation time and residual magnetic field based on the extended ratio-fitting method

Résumé fourni par la source

Atomic spin gyroscope benefiting from high precision and chip-scale potentiality is expected to develop into the next generation inertial navigation sensor. To improve the gyroscope’s performance, long transverse relaxation time and near zero magnetic field conditions are the prerequisites. In this paper, the extended ratio-fitting method with magnetic relevant parameters is analyzed theoretically and used for simultaneously measuring transverse relaxation time and residual magnetic field. Experimental validation employing magnetic compensation and magnetic resonance broadening (MRB) techniques conclusively demonstrates the efficacy of this method. This methodology may similarly be adapted for implementation in spin-exchange relaxation-free (SERF) magnetometers.