| ATOMIC AND MOLECULAR PHYSICS |
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Calculation of Multiphoton Transition in Li Atoms via Chirped Microwave Pulse |
| JIA Guang-Rui1,2**, ZHANG Xian-Zhou1, LIU Yu-Fang1,2, YU Kun2, ZHAO Yue-Jin2
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1College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007
2School of Optoelectronics, Beijing Institute of Technology, Beijing 100081
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| Cite this article: |
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JIA Guang-Rui, ZHANG Xian-Zhou, LIU Yu-Fang et al 2011 Chin. Phys. Lett. 28 103201 |
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Abstract The position and width of avoided crossings of Li atom energy levels in a static electric field is presented by using the B-spline basis set method combined with the model potential. Using the time-dependent multilevel approach, the population of Li atoms is transferred to the target state completely by one-photon, two-photon or a single multiphoton adiabatic rapid passage, which requires only a small frequency sweep. The calculation results agree well with the experiment and novel explanations are given to understand the experimental results.
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| Keywords:
32.80.Qk
32.30.Bv
32.80.-t
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Received: 13 May 2011
Published: 28 September 2011
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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.-t
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(Photoionization and excitation)
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