Nonlinear spectroscopy of barium in parallel electric and magnetic fields

doi:10.1088/1674-1056/23/10/103201

中国物理B ›› 2014, Vol. 23 ›› Issue (10): 103201-103201.doi: 10.1088/1674-1056/23/10/103201

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Nonlinear spectroscopy of barium in parallel electric and magnetic fields

杨海峰^{a b}, 高伟^b, 成红^b, 刘红平^b

a College of Physics and Electronic Information, Luoyang Normal University, Luoyang 471022, China;
b State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physicsand Mathematics, Chinese Academy of Sciences, Wuhan 430071, China

收稿日期:2014-03-21 修回日期:2014-04-11 出版日期:2014-10-15 发布日期:2014-10-15
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2013CB922003) and the National Natural Science Foundation of China (Grant Nos. 11174329 and 91121005).

Nonlinear spectroscopy of barium in parallel electric and magnetic fields

Yang Hai-Feng (杨海峰)^{a b}, Gao Wei (高伟)^b, Cheng Hong (成红)^b, Liu Hong-Ping (刘红平)^b

a College of Physics and Electronic Information, Luoyang Normal University, Luoyang 471022, China;
b State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physicsand Mathematics, Chinese Academy of Sciences, Wuhan 430071, China

Received:2014-03-21 Revised:2014-04-11 Online:2014-10-15 Published:2014-10-15
Contact: Liu Hong-Ping E-mail:liuhongping@wipm.ac.cn
About author:32.30.-r; 32.60.+i; 03.65.Ge
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2013CB922003) and the National Natural Science Foundation of China (Grant Nos. 11174329 and 91121005).

摘要/Abstract

摘要： We report on the experimental spectral observations of barium in parallel electric and magnetic fields. The laser pulse is linearly polarized along or perpendicular to the fields, leading to the states m=0 and the states m=±1 populated, respectively, by one photon excitation. By sweeping the electric field, we observe the linear and nonlinear splitting of the diamagnetic spectrum as the electric field increases. The spectral anticrossing is induced by the atomic core effect. The Stark spectrum also shows an obvious nonlinear quadratic behavior when the applied magnetic field varies strongly. All spectra are well explained by the full quantum calculation after taking the quantum defect effects of the channel ns up to nf into account.

关键词: Rydberg atoms, Stark effect, diamagnetic effect

Abstract: We report on the experimental spectral observations of barium in parallel electric and magnetic fields. The laser pulse is linearly polarized along or perpendicular to the fields, leading to the states m=0 and the states m=±1 populated, respectively, by one photon excitation. By sweeping the electric field, we observe the linear and nonlinear splitting of the diamagnetic spectrum as the electric field increases. The spectral anticrossing is induced by the atomic core effect. The Stark spectrum also shows an obvious nonlinear quadratic behavior when the applied magnetic field varies strongly. All spectra are well explained by the full quantum calculation after taking the quantum defect effects of the channel ns up to nf into account.

Key words: Rydberg atoms, Stark effect, diamagnetic effect

中图分类号: (Atomic spectra?)

32.30.-r

32.60.+i (Zeeman and Stark effects) 03.65.Ge (Solutions of wave equations: bound states)

杨海峰, 高伟, 成红, 刘红平. Nonlinear spectroscopy of barium in parallel electric and magnetic fields[J]. 中国物理B, 2014, 23(10): 103201-103201.

Yang Hai-Feng (杨海峰), Gao Wei (高伟), Cheng Hong (成红), Liu Hong-Ping (刘红平). Nonlinear spectroscopy of barium in parallel electric and magnetic fields[J]. Chin. Phys. B, 2014, 23(10): 103201-103201.

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Nonlinear spectroscopy of barium in parallel electric and magnetic fields

Nonlinear spectroscopy of barium in parallel electric and magnetic fields

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