Magnetic field measurement by stimulated Raman transitions and smoothing by dynamical compensation in rubidium fountain clock
- Resource Type
- Conference
- Authors
- Wang, Wenli; Dong, Richang; Wei, Rong; Chen, Tingting; Wang, Qian; Wang, Yuzhu
- Source
- 2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS) Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS), 2017 Joint Conference of the European. :332-335 Jul, 2017
- Subject
- Components, Circuits, Devices and Systems
Magnetic field measurement
Magnetic fields
Atomic measurements
Magnetic resonance
Laser beams
Clocks
Uncertainty
magnetic field measurement
stimulated Raman transition
dynamical compensation
atomic fountain clock
- Language
- ISSN
- 2327-1949
We present a method for magnetic field measurement by the weak magnetic-sensitive Zeeman splitting and a method for measuring the magnetic field vector by probing the line strength of stimulated Raman transitions. Compared with the traditional measurement, the contrast of the weak magnetic-sensitive resonance signal is improved significantly for gradient field. We also present a dynamical compensation method to smooth the spatial fluctuation of the magnetic field in the fountain clock. A homogeneous field with a 0.4 nT peak-to-peak value is realized compared to 5nT under the static magnetic field.