| ATOMIC AND MOLECULAR PHYSICS |
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The Dynamics of Rubidium Atoms in THz Laser Fields |
| JIA Guang-Rui1,2**, ZHAO Yue-Jin1, ZHANG Xian-Zhou2, LIU Yu-Fang1,2, YU Kun1 |
1School of Optoelectronics, Beijing Institute of Technology, Beijing 100081
2College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007
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| Cite this article: |
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JIA Guang-Rui, ZHAO Yue-Jin, ZHANG Xian-Zhou et al 2013 Chin. Phys. Lett. 30 073201 |
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Abstract By using B-spline basis set combined with model potential, energy levels and wave functions of rubidium atoms are obtained. Using a time-dependent multi-level approach, we study the dependence of the population of rubidium atoms excited from a low lying state to a target state on the parameters of a single or two broadband terahertz laser pulses. The population redistribution between the states n=23 and n=24 due to the interaction with terahertz pulses is analyzed in detail. Population oscillation in the initial and final states as a function of the time delay between two half cycle pulses is shown, and the oscillation period is the same as the Kepler period of the selected states. The calculation results agree well with the experiment and can be explained by the semiclassical picture.
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Received: 07 April 2013
Published: 21 November 2013
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| PACS: |
32.80.Qk
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(Coherent control of atomic interactions with photons)
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32.30.Bv
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(Radio-frequency, microwave, and infrared spectra)
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32.80.Ee
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(Rydberg states)
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[1] Wesdorp C, Robicheaux F and Noordam L D 1999 Phys. Rev. A 60 5122
[2] Wetzels A, Gurtler A, Noordam L D, Robicheaux F, Dinu C, Muller H G, Vrakking M J J and Zande W J 2002 Phys. Rev. Lett. 89 273003
[3] Wesdorp C, Robicheaux F and Noordam L D 2000 Phys. Rev. Lett. 84 3799
[4] Maeda H, Norum D V L and Gallagher T F 2005 Science 307 1757
[5] Lamb-ert J, Noel M W and Gallagher T F 2002 Phys. Rev. A 66 053413
[6] Mahon C R, Dexter J L, Pillet P and Gallagher T F 1991 Phys. Rev. A 44 1859
[7] Mestayer J J, Zhao W, Lancaster J C, Dunning F B, Reinhold C O, Yoshida S and Burgdorfer J 2007 Phys. Rev. Lett. 99 183003
[8] Drabbels M and Noordam L D 1999 Appl. Phys. Lett. 74 1797
[9] Gurtler A, Meijer A S and Zande W J 2003 Appl. Phys. Lett. 83 222
[10] Kang S, Li J and Shi T Y 2006 J. Phys. B 39 3491
[11] Han H L, Tang L Y and Shi T Y 2011 Phys. Rev. A 84 064503
[12] Zhang X Z, Jiang H M, Rao J G and Li B W 2003 Phys. Rev. A 68 025401
[13] Jia G R, Zhang X Z, Ren Z Z and Wu S L 2009 Chin. Phys. B 18 5272
[14] Schweizer W, Faβ binder P and Gonzalez-Ferez R 1999 At. Data Nucl. Data Tables 72 33
[15] Tielking N E and Jones R R 1995 Phys. Rev. A 52 1371
[16] Wetzels A, Gurtler A, Muller H G and Noordam L D 2001 Eur. Phys. J. D 14 157 |
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