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Population Rate Equation Analysis of Controllability of Fragmentation Process in Multiphoton ionization Experiments of Polyatomic Molecules
Li Haiyang; Bai Jiling
关键词Population Rate Equation Multiphoton Ionization Mass Spectrum Fragmentation Furan
刊名ACTA PHYSICO-CHIMICA SINICA
1995
DOI10.3866/PKU.WHXB19950203
11期:2页:107-112
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
英文摘要On the basis of population rate equation of multiphoton ionization and fragmentation processes, the controllability of fragmentation process in MPI experiments of polyatomic molecules is analyzed in this paper. Curves of ionization efficiency and mean energy < E > of ions versus laser intensity were calculated for different ionization schemes. From the calculation results, we find that only 1+1 ionization scheme, soft ionization and hard fragmentation can be controlled by changing the intensity of ionization laser. For 3+1 ionization scheme, due to additional absorption photons after ionization, the ions have already obtained internal energy about 20 similar to 30eV/per ion even at single ion detection limit. This amount of energy far exceeds the dissociation threshold of the parent ion, so the parent ions formed by ionization can completely dissociate to daughters in the same laser pules. Our analyses can explain why parent ions didn't appear in MPI mass spectra of furan molecule at 450 nm.
语种英语
WOS记录号WOS:000207590100003
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139435
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol Dynam, Dalian 116023, Peoples R China
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Li Haiyang,Bai Jiling. Population Rate Equation Analysis of Controllability of Fragmentation Process in Multiphoton ionization Experiments of Polyatomic Molecules[J]. ACTA PHYSICO-CHIMICA SINICA,1995,11(2):107-112.
APA Li Haiyang,&Bai Jiling.(1995).Population Rate Equation Analysis of Controllability of Fragmentation Process in Multiphoton ionization Experiments of Polyatomic Molecules.ACTA PHYSICO-CHIMICA SINICA,11(2),107-112.
MLA Li Haiyang,et al."Population Rate Equation Analysis of Controllability of Fragmentation Process in Multiphoton ionization Experiments of Polyatomic Molecules".ACTA PHYSICO-CHIMICA SINICA 11.2(1995):107-112.
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