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题名: Interferences in Photodetachment of a Negative Molecular Ion Model
作者: Afaq, A. ;  Du Meng-Li
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2008
卷号: 50, 期号:6, 页码:1401-1406
关键词: ELECTRIC-FIELD ;  CROSS-SECTION ;  MICROSCOPE
学科分类: Physics
通讯作者: Afaq, A , COMSATS Inst Informat Technol, Dept Phys, Islamabad, Pakistan
部门归属: [Afaq, A] COMSATS Inst Informat Technol, Dept Phys, Islamabad, Pakistan; [Du, ML] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: By employing a two-center model, the total and differential cross sections in the photodetachment of "a negative molecular ion" are studied theoretically and obtained for the case of light polarization parallel to the molecular axis. We find that in contrast to the smooth behavior of the total cross section for perpendicular polarized light, the cross section for parallel polarized light shows an interesting oscillatory structure. The oscillations in the total cross section may provide a method to determine the distance between the two centers. We explain the oscillation in the total cross section as an interference effect using closed-orbit theory. We also calculated the detached-electron flux distributions on a screen placed at a large distance from the negative molecular ion. The distributions display multiple-ring-like interference patterns. Such interference patterns are similar to those in the photodetachment microscopy experiments.
资助者: National Natural Science Foundation of China[90403028]
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000262728000032
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5416
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Afaq, A.,Du Meng-Li. Interferences in Photodetachment of a Negative Molecular Ion Model[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2008,50(6):1401-1406.
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