Cluster-assisted generation of multi-charged ions in nanosecond laser ionization of pulsed hydrogen sulfide beam at 1064 and 532 nm

	Cluster-assisted generation of multi-charged ions in nanosecond laser ionization of pulsed hydrogen sulfide beam at 1064 and 532 nm
	Niu Dong-Mei ; Li Hai-Yang ; Luo Xiao-Lin ; Liang Feng ; Cheng Shuang ; Li An-Lin
刊名	chinese physics
	2006-07-01
卷号	15 期号:7 页码:1511-1516
关键词	cluster multi-charged ion inverse bremsstrahlung absorption electron impact ionization
通讯作者	李海洋
产权排序	1;1
英文摘要	the multi-charged sulfur ions of sq+ (q = 6) have been generated when hydrogen sulfide cluster beams are irradiated by a nanosecond laser of 1064 and 532nm with an intensity of 10(10) similar to 10(12) w(.)cm(-2). s6+ is the dominant multi-charged species at 1064 nm, while s4+, s3+ and s2+ ions are the main multi-charged species at 532 nm. a three-step model (i.e., multiphoton ionization triggering, inverse bremsstrahlung heating, electron collision ionizing) is proposed to explain the generation of these multi-charged ions at the laser intensity stated above. the high ionization level of the clusters and the increasing charge state of the ion products with increasing laser wavelength are supposed mainly due to the rate-limiting step, i.e., electron heating by absorption energy from the laser field via inverse bremsstrahlung, which is proportional to lambda(2), lambda being the laser wavelength.
WOS标题词	science & technology ; physical sciences
类目[WOS]	physics, multidisciplinary
研究领域[WOS]	physics
关键词[WOS]	multielectron dissociative ionization ; coulomb explosion ; wavelength dependence ; multiple ionization ; electron ; dynamics ; benzene ; field
收录类别	SCI
原文出处	true
语种	英语
WOS记录号	WOS:000239006600022
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/98227]
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	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Niu Dong-Mei,Li Hai-Yang,Luo Xiao-Lin,et al. Cluster-assisted generation of multi-charged ions in nanosecond laser ionization of pulsed hydrogen sulfide beam at 1064 and 532 nm[J]. chinese physics,2006,15(7):1511-1516.
APA	Niu Dong-Mei,Li Hai-Yang,Luo Xiao-Lin,Liang Feng,Cheng Shuang,&Li An-Lin.(2006).Cluster-assisted generation of multi-charged ions in nanosecond laser ionization of pulsed hydrogen sulfide beam at 1064 and 532 nm.chinese physics,15(7),1511-1516.
MLA	Niu Dong-Mei,et al."Cluster-assisted generation of multi-charged ions in nanosecond laser ionization of pulsed hydrogen sulfide beam at 1064 and 532 nm".chinese physics 15.7(2006):1511-1516.