Microwave-Optical Double-Resonance Spectroscopy Experiment of 199Hg+ Ground State Hyperfine Splitting in a Linear Ion Trap
Microwave-Optical Double-Resonance Spectroscopy Experiment of 199Hg+ Ground State Hyperfine Splitting in a Linear Ion Trap
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DOI：
10.1088/0256-307x/31/6/063201
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发表时间：
2014-06
影响因子：
3.5
通讯作者：
Hao 浩 Liu 柳;Y. YANG 杨;Y. He 何;H. Li 李;Y. Chen 陈;Lei 磊 She 佘;Jiao-Mei 交美 Li 李
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作者：
Hao 浩 Liu 柳;Y. YANG 杨;Y. He 何;H. Li 李;Y. Chen 陈;Lei 磊 She 佘;Jiao-Mei 交美 Li 李
报道了在线性离子阱中199 Hg ~+基态超精细分裂的光谱实验。离子由放电灯光泵浦，并由氦缓冲气体冷却。用微波-光学双共振方法测得基态超精细分裂为40507347996.8（0.1）Hz。还观察到30 mHz的窄线宽。这一进展为实现199 Hg+离子频率标准奠定了基础。
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.