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Interferences in Photodetachment of a Negative Molecular Ion Model
Afaq, A.; Du Meng-Li; Afaq, A , COMSATS Inst Informat Technol, Dept Phys, Islamabad, Pakistan
2008
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
卷号50期号:6页码:1401-1406
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.
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
关键词Electric-field Cross-section Microscope
学科领域Physics
资助者National Natural Science Foundation of China[90403028] ; National Natural Science Foundation of China[90403028] ; National Natural Science Foundation of China[90403028] ; National Natural Science Foundation of China[90403028]
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收录类别SCI
资助者National Natural Science Foundation of China[90403028] ; National Natural Science Foundation of China[90403028] ; National Natural Science Foundation of China[90403028] ; National Natural Science Foundation of China[90403028]
WOS记录号WOS:000262728000032
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被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5416
专题理论物理所1978-2010年知识产出
通讯作者Afaq, A , COMSATS Inst Informat Technol, Dept Phys, Islamabad, Pakistan
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Afaq, A.,Du Meng-Li,Afaq, A , COMSATS Inst Informat Technol, Dept Phys, Islamabad, Pakistan. Interferences in Photodetachment of a Negative Molecular Ion Model[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2008,50(6):1401-1406.
APA Afaq, A.,Du Meng-Li,&Afaq, A , COMSATS Inst Informat Technol, Dept Phys, Islamabad, Pakistan.(2008).Interferences in Photodetachment of a Negative Molecular Ion Model.COMMUNICATIONS IN THEORETICAL PHYSICS,50(6),1401-1406.
MLA Afaq, A.,et al."Interferences in Photodetachment of a Negative Molecular Ion Model".COMMUNICATIONS IN THEORETICAL PHYSICS 50.6(2008):1401-1406.
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