| ATOMIC AND MOLECULAR PHYSICS |
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Microwave-Optical Double-Resonance Spectroscopy Experiment of 199Hg+ Ground State Hyperfine Splitting in a Linear Ion Trap |
| LIU Hao1,2,3, YANG Yu-Na1,2,3, HE Yue-Hong1,2,3, LI Hai-Xia1,2,3, CHEN Yi-He1,2, SHE Lei1,2**, LI Jiao-Mei1,2** |
1Key Laboratory of Atomic Frequency Standard, Chinese Academy of Sciences, Wuhan 430071
2Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071
3University of Chinese Academy of Sciences, Beijing 100049
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| Cite this article: |
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LIU Hao, YANG Yu-Na, HE Yue-Hong et al 2014 Chin. Phys. Lett. 31 063201 |
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Abstract We report a spectroscopy experiment of the 199Hg+ ground state hyperfine splitting in a linear ion trap. The ions are optically pumped by a discharge lamp and cooled by helium buffer gas. The ground state hyperfine splitting is measured to be 40507347996.8(0.1) Hz by the microwave-optical double-resonance method. A narrow line width as 30 mHz is also observed. This progress builds the foundation for the realization of trapped 199Hg+ ion frequency standards.
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Published: 26 May 2014
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| PACS: |
32.10.Fn
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(Fine and hyperfine structure)
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33.20.Bx
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(Radio-frequency and microwave spectra)
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37.10.Ty
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(Ion trapping)
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32.70.Jz
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(Line shapes, widths, and shifts)
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