Population Rate Equation Analysis of Controllability of Fragmentation Process in Multiphoton ionization Experiments of Polyatomic Molecules

	Population Rate Equation Analysis of Controllability of Fragmentation Process in Multiphoton ionization Experiments of Polyatomic Molecules
	Li Haiyang; Bai Jiling
刊名	acta physico-chimica sinica
	1995
卷号	11 期号:2 页码:107-112
关键词	Population rate equation Multiphoton ionization Mass spectrum Fragmentation Furan
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.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, physical
研究领域[WOS]	chemistry
收录类别	SCI
语种	英语
WOS记录号	WOS:000207590100003
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/139435]
专题	大连化学物理研究所_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
推荐引用方式 GB/T 7714	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.