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Stark spectrum of barium in highly excited Rydberg states |
| Yang Hai-Feng (杨海峰), Gao Wei (高伟), Cheng Hong (成红), Liu Xiao-Jun (柳晓军), Liu Hong-Ping (刘红平) |
| State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China |
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Abstract We present observations of Stark spectra of barium in highly excited Rydberg states in the energy region around n=35. The one-photon excitation concerns the π transition. The observed Stark spectra at electric fields ranging from 0 to 60 V·cm-1 are well explained by the diagonalization of the Hamiltonian incorporating the core effects. From the Stark maps, the anti-crossings between energy levels are identified experimentally and theoretically. The time of flight spectra at the specified Stark states are recorded, where the deceleration and acceleration of barium atoms are observed. It is well consistent with the prediction derived from the Stark maps on the point of view of energy conservation.
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Received: 17 May 2012
Revised: 06 July 2012
Accepted manuscript online:
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PACS:
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32.60.+i
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(Zeeman and Stark effects)
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32.30.-r
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(Atomic spectra?)
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82.80.Rt
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(Time of flight mass spectrometry)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11174329 and 91121005) and the National Basic Research Program of China (Grant No. 2013CB922003). |
Corresponding Authors:
Liu Hong-Ping
E-mail: liuhongping@wipm.ac.cn
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Cite this article:
Yang Hai-Feng (杨海峰), Gao Wei (高伟), Cheng Hong (成红), Liu Xiao-Jun (柳晓军), Liu Hong-Ping (刘红平) Stark spectrum of barium in highly excited Rydberg states 2013 Chin. Phys. B 22 013202
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