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|Title:||A parametrically modulated dual-axis atomic spin gyroscope|
|Citation:||Applied Physics Letters, 2018; 112(5):054103|
|Liwei Jiang, Wei Quan, a, Rujie Li, Wenfeng Fan, Feng Liu, Jie Qin, Shuangai Wan and Jiancheng Fang|
|Abstract:||We describe a dual-axis atomic spin gyroscope based on an alkali metal-noble gas comagnetometer. Alkali metal vapor is optically pumped, and then the noble gas is hyperpolarized along the z axis. When sensing a transverse rotation, the polarized noble gas will be induced to precess and produce an effective magnetic field in the x – y plane for alkali metals to precess under. Operating in the spin-exchange relaxation-free regime, alkali atoms are modulated by the z axis magnetic field and serve as an integrated in-situ dual-axis magnetometer to detect the gyroscopic precession in the x and y axes simultaneously, using a single probe beam. By using the parametric modulation technique, the low frequency drift is effectively suppressed and a bias instability of less than 0.05 deg/h has been achieved in our dual-axis atomic spin gyroscope.|
|Rights:||AIP Publishing allows authors to retain their copyrights. Authors sign an exclusive license to publish agreement that grants AIP Publishing the necessary rights it needs to publish and disseminate the work. AIP Publishing also manages reuse permission requests and investigates and responds to any claims of copyright infringement, plagiarism, and ethical concerns on behalf of its authors.|
|Appears in Collections:||Physics publications|
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