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Photodetachment of hydrogen negative ion inside a circular microcavity |
Wang De-Hua (王德华), Liu Sheng (刘声), Li Shao-Sheng (李绍晟), Wang Yi-Hao (王一豪) |
School of Physics and Optoelectronic Engineering, Ludong University, Yantai 264025, China |
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Abstract The photodetachment of hydrogen negative ion inside a circular microcavity is studied based on the semiclassical closed orbit theory. The closed orbit of the photo-detached electron in a circular microcavity is investigated and the photodetachment cross section of this system is calculated. The calculation result suggests that oscillating structure appears in the photodetachment cross section, which is caused by the interference effects of the returning electron waves with the outgoing waves traveling along the closed orbits. Besides, our study suggests that the photodetachment cross section of the negative ions depends on the laser polarization sensitively. In order to show the correspondence between the cross section and the closed orbits of detached electron clearly, we calculate the Fourier transformation of the cross section and find that each peak corresponds to the length of one closed orbit. We hope that our results will be useful for understanding the photodetachment process of negative ions or the electron transport in a microcavity.
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Received: 17 September 2012
Revised: 12 November 2012
Accepted manuscript online:
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PACS:
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34.35.+a
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(Interactions of atoms and molecules with surfaces)
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32.80.Gc
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(Photodetachment of atomic negative ions)
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32.80.Qk
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(Coherent control of atomic interactions with photons)
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42.50.Hz
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(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11074104), the Project of Shandong Province Higher Educational Science and Technology Program, China (Grant No. J13LJ04), and the University Student's Science & Technology Innovation Fund of Ludong University, China(Grant No. 12z004). |
Corresponding Authors:
Wang De-Hua
E-mail: lduwdh@163.com
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Cite this article:
Wang De-Hua (王德华), Liu Sheng (刘声), Li Shao-Sheng (李绍晟), Wang Yi-Hao (王一豪) Photodetachment of hydrogen negative ion inside a circular microcavity 2013 Chin. Phys. B 22 073401
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