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首页> 外文期刊>Optics Letters >Measurement of the absolute energy level and hyperfine structure of the ~(87)Rb 4D_(5/2) state
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Measurement of the absolute energy level and hyperfine structure of the ~(87)Rb 4D_(5/2) state

机译：〜（87）Rb 4D_（5/2）态的绝对能级和超精细结构的测量

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摘要

We have measured the absolute frequency of the excited state transition 5P_(3/2)-4D_(5/2) in a ~(87)Rb atom with afemtosecond frequency comb, utilizing the recently developed spectroscopic technique of the double resonance optical pumping method. The absolute energy level of the 4D_(5/2) state is determined by measuring the absolute frequency of the 5S_(1/2)-5P_(3/2) transition simultaneously. The hyperfine structure constants of the 4D_(5/2) state are obtained by using the measured frequency. The magnetic dipole constant, A, is determined to be (-16.747+-0.010) MHz with an uncertainty reduced 60-fold compared with a previous result. The electric quadrupole constant, B, is determined, for what is to our knowledge the first time, to be (4.149+-0.059) MHz.
机译：我们使用飞秒频率梳测量了〜（87）Rb原子中的激发态跃迁5P_（3/2）-4D_（5/2）的绝对频率，采用了飞秒频率梳，方法是利用最新开发的双共振光泵浦技术。通过同时测量5S_（1/2）-5P_（3/2）跃迁的绝对频率来确定4D_（5/2）状态的绝对能级。通过使用测得的频率获得4D_（5/2）状态的超精细结构常数。磁偶极常数A被确定为（-16.747 + -0.010）MHz，与以前的结果相比，不确定性降低了60倍。据我们所知，电四极常数B首次确定为（4.149 + -0.059）MHz。

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