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题名: Wavelength dependence of production of multicharged carbon ions in nanosecond intense laser ionization of seeded benzene beam
作者: Niu, DM;  Liang, F;  Luo, XL;  Wen, LH;  Zhang, XX;  Li, HY
关键词: benzene ;  Coulomb explosion ;  multicharged atomic ions ;  time of flight mass spectrometry
刊名: CHINESE JOURNAL OF CHEMICAL PHYSICS
发表日期: 2004-08-01
卷: 17, 期:4, 页:375-377
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Physics
英文摘要: The photoionization of seeded benzene beam by 25 ns laser pulse at wavelengths of 266, 355 and 1064 nm has been studied by the time-of-flight mass spectrometry. The observed mass spectra at 266 run and 355 nm at intensities of 10(10) similar to 10(11) W/cm(2) indicate a multiphoton ionization and dissociation (MPID) process, in which C+, C2Hx+, C3Hx+, C4Hx+ and C6H6+ are main products. While at 1064 nm laser of similar intensities, the domain ion is C4+ which is produced from Coulomb explosion. The longer wavelength facilities the energy absorption rate during inverse bremsstrahlung, which leads to the resulting wavelength dependence of the multicharged atomic ions.
关键词[WOS]: MULTI-PHOTON IONIZATION ;  FRAGMENTATION ;  CLUSTERS ;  PULSES ;  FIELDS ;  NM
语种: 英语
WOS记录号: WOS:000223842300002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139456
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Niu, DM,Liang, F,Luo, XL,et al. Wavelength dependence of production of multicharged carbon ions in nanosecond intense laser ionization of seeded benzene beam[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2004,17(4):375-377.
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