Cluster-assisted multiple-ionization of methyl iodide by a nanosecond laser: Wavelength dependence of multiple-charge ions

	Cluster-assisted multiple-ionization of methyl iodide by a nanosecond laser: Wavelength dependence of multiple-charge ions
	Wang, Weiguo; Li, Haiyang; Niu, Dongmei; Wen, Lihua; Zhang, Nazhen
刊名	chemical physics
	2008-09-03
卷号	352 期号:1-3 页码:111-116
关键词	multiple-charge ions nanosecond laser methyl iodide cluster inverse bremsstrahlung
英文摘要	as efforts continue to elucidate laser-cluster interactions, we investigated the influence of laser wavelength on ion products. in this study, a pulsed methyl iodide cluster was irradiated with a nd-yag nanosecond laser, and the ion products were analyzed using time-of-flight mass spectrometry. multiple-charge atomic ions of cq+ and iq+(q >= 2) were observed using 532 and 1064 nm laser wavelengths; however, only single-charge atomic and molecular ions appeared at 266 and 355 nm. we show that the charge-state distribution for multiple-charge ions is almost independent of laser intensity. a three-stage model was developed to further understand these experimental results: the inverse electron bremsstrahlung heating rate is proportional to the square of laser wavelength, which seems to explain the dependence of multiple-charge ions on the wavelength. (c) 2008 elsevier b.v. all rights reserved.
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]	x-ray-emission ; multielectron dissociative ionization ; multiphoton inverse bremsstrahlung ; atomic clusters ; energy ; field ; generation ; dynamics ; pulses ; nm
收录类别	SCI
语种	英语
WOS记录号	WOS:000259463200014
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/140825]
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, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Wang, Weiguo,Li, Haiyang,Niu, Dongmei,et al. Cluster-assisted multiple-ionization of methyl iodide by a nanosecond laser: Wavelength dependence of multiple-charge ions[J]. chemical physics,2008,352(1-3):111-116.
APA	Wang, Weiguo,Li, Haiyang,Niu, Dongmei,Wen, Lihua,&Zhang, Nazhen.(2008).Cluster-assisted multiple-ionization of methyl iodide by a nanosecond laser: Wavelength dependence of multiple-charge ions.chemical physics,352(1-3),111-116.
MLA	Wang, Weiguo,et al."Cluster-assisted multiple-ionization of methyl iodide by a nanosecond laser: Wavelength dependence of multiple-charge ions".chemical physics 352.1-3(2008):111-116.