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Multiply ionization of diethyl ether clusters by 532 nm nanosecond laser: The influence of laser intensity and the electron energy distribution
Zhang, Nazhen1,2; Wang, Weiguo1; Zhao, Wuduo1,2; Han, Fenglei1,2; Li, Haiyang1; Li HY(李海洋)
关键词Multiply Charged Ions Electron Energy Diethyl Ether Cluster Nanosecond Laser
刊名CHEMICAL PHYSICS
2010-08-03
ISSN0301-0104
DOI10.1016/j.chemphys.2010.05.002
373期:3页:181-185
收录类别SCI
文章类型Article
部门归属1
项目归属102
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
研究领域[WOS]Chemistry ; Physics
关键词[WOS]MULTIPHOTON IONIZATION ; ATOMIC CLUSTERS ; DIMETHYL ETHER ; METHYL-IODIDE ; IONS ; PULSES ; GENERATION ; EXPLOSIONS ; BEAM
英文摘要The formation mechanism for multiply charged ions ( C(q+) and O(q+) ( q = 2-4)) were investigated using a dual polarity time-of-flight mass spectrometer when diethyl ether clusters interacted with nanosecond laser pulse. The signal intensity of multiply charged ions and electron energy was measured experimentally. It was shown that the intensity of multiply charged ions increased about 50 times when laser intensity increased from 7.6 x 10(9) to 7.0 x 10(10) W/cm(2), then saturated as laser intensity increased further. It is interesting that the evolution of the mean value of electron energy was same to that of multiply charged ions. The theoretical calculation showed the ionization potential of atomic ions could be significantly decreased due to the effect of Coulomb screening especially at low laser intensity. It indicated that the electron ionization combined with Coulomb screening effect could explain the production of multiply charged ions in nanosecond laser field. Crown Copyright (C) 2010 Published by Elsevier B. V. All rights reserved.
语种英语
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WOS记录号WOS:000280580800004
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/103621
专题中国科学院大连化学物理研究所
通讯作者Li HY(李海洋)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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Zhang, Nazhen,Wang, Weiguo,Zhao, Wuduo,et al. Multiply ionization of diethyl ether clusters by 532 nm nanosecond laser: The influence of laser intensity and the electron energy distribution[J]. CHEMICAL PHYSICS,2010,373(3):181-185.
APA Zhang, Nazhen,Wang, Weiguo,Zhao, Wuduo,Han, Fenglei,Li, Haiyang,&李海洋.(2010).Multiply ionization of diethyl ether clusters by 532 nm nanosecond laser: The influence of laser intensity and the electron energy distribution.CHEMICAL PHYSICS,373(3),181-185.
MLA Zhang, Nazhen,et al."Multiply ionization of diethyl ether clusters by 532 nm nanosecond laser: The influence of laser intensity and the electron energy distribution".CHEMICAL PHYSICS 373.3(2010):181-185.
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