Measurement and numerical calculation of Rubidium Rydberg Stark spectra
Measurement and numerical calculation of Rubidium Rydberg Stark spectra
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DOI：
10.1088/1367-2630/17/5/053005
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发表时间：
2015-03
影响因子：
3.3
通讯作者：
J. Grimmel;M. Mack;F. Karlewski;F. Jessen;M. Reinschmidt;N'ora S'andor;J. Fort'agh
中科院分区：
文献类型：
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作者：
J. Grimmel;M. Mack;F. Karlewski;F. Jessen;M. Reinschmidt;N'ora S'andor;J. Fort'agh
本文报道了用电磁感应透明（EIT）方法测量87 Rb里德堡原子在静电场中的斯塔克位移能级。使用带有铷蒸气的玻璃电池内的电极施加高达500 V cm-1的电场强度，超出了经典电离阈值。为了与根据（齐默尔曼等人，1979年，物理评论A 20 2251）中所述方法进行的从头计算结果进行比较，已经获得了主量子数n = 35和n = 70的斯塔克图，具有高信噪比，该方法最初仅对n = 15附近的状态进行了验证。我们还计算了低位态和斯塔克位移里德堡态之间的偶极矩阵元，给出了EIT信号相对强度的理论估计。目前的工作显着扩展的实验验证，这种数值方法的范围内的高主量子数和高电场的精度高达2 MHz。
We report on the measurement of Stark shifted energy levels of 87Rb Rydberg atoms in static electric fields by means of electromagnetically induced transparency (EIT). Electric field strengths of up to 500 V cm−1, ranging beyond the classical ionization threshold, were applied using electrodes inside a glass cell with rubidium vapour. Stark maps for principal quantum numbers n = 35 and n = 70 have been obtained with high signal-to-noise ratio for comparison with results from ab initio calculations following the method described in (Zimmerman et al 1979 Phys. Rev. A 20 2251), which was originally only verified for states around n = 15. We also calculate the dipole matrix elements between low-lying states and Stark shifted Rydberg states to give a theoretical estimate of the relative strength of the EIT signal. The present work significantly extends the experimental verification of this numerical method in the range of both high principal quantum numbers and high electric fields with an accuracy of up to 2 MHz.