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A single-beam dual-axis atomic spin comagnetometer for rotation sensing.
- Source :
-
Applied Physics Letters . 2/14/2022, Vol. 120 Issue 7, p1-6. 6p. - Publication Year :
- 2022
-
Abstract
- We describe a dual-axis atomic spin comagnetometer for rotation sensing using a single laser beam. A circularly polarized laser is used to pump the co-located atomic ensembles of alkali metal and noble gas and probe their gyroscopic precession at the same time, which is different from the traditional two-beam orthogonal pump-probe configuration. Combined with magnetic field modulations perpendicular to the laser propagating direction, the comagnetometer could measure dual-axis rotation rates simultaneously. This system is demonstrated theoretically and experimentally. A rotation sensitivity of 5.1 × 10ā7 rad sā1 Hzā1ā2 and a bias instability of 0.016 °/h have been achieved. The theory and method presented here shed light on the way to miniaturize the comagnetometer with high precision for practical applications. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ROTATIONAL motion
*LASER beams
*PRECIOUS metals
*MAGNETIC fields
Subjects
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 120
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 155336196
- Full Text :
- https://doi.org/10.1063/5.0079429