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采用高信噪比电磁诱导透明谱测定85Rb原子5D5/2态的超精细相互作用常数

Determination of the hyperfine coupling constants of the 5D_(5/2) state of ^(85)Rb atoms by using high signal-to-noise ratio electromagnetically-induced transparency spectra
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摘要 基于^(85)Rb原子5S1/2-5P3/2-5D_(5/2)阶梯型能级系统(780 nm+776 nm),利用高信噪比的电磁诱导透明谱对^(85)Rb原子5D_(5/2)态超精细分裂进行测量.其中,频率校准是通过位相型电光调制器和共焦法布里-珀罗腔共同实现的.通过测量^(85)Rb原子5D′5/2态(F′=5),(F′′=4)及(F′′=3)之间的超精细分裂,我们确定了^(85)Rb原子5D_(5/2)态的磁偶极超精细相互作用常数(A=-(2.222±0.019)MHz)和电四极超精细相互作用常数(B=(2.664±0.130)MHz). We report the hyperfine splitting measurement of the 85Rb 5D5/2 state by electromagnetically induced transparency spectroscopy with high signal-to-noise ratio in the 85Rb 5S1/2-5P3/2-5D5/2 ladder-type system (m 780 nm + 776 nm). The frequency calibration is performed by employing a phase-type electro-optic modulator with a confocal Fabry-Perot cavity. From the measured hyperfine splittings among the manifolds of (F"=5), (F"=4) and (F"=3) of the 85Rb 5D5/2 state, we determine the magnetic dipole hyperfine coupling constant (A= (-2.222 ± 0.019) MHz) and the quadrupole coupling constant (B= (2.664 ± 0.130) MHz) of 5D5/2 state of 85Rb atoms.
出处 《物理学报》 SCIE EI CAS CSCD 北大核心 2017年第10期77-84,共8页 Acta Physica Sinica
基金 国家自然科学基金(批准号:61475091,11274213,61227902)资助的课题~~
关键词 超精细分裂 电磁诱导透明 电光调制器 法布里-珀罗腔 hyperfine splitting, electromagnetically-induced transparency, electronic-optic modulator,Fabry-Perot cavity
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