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Author Huang, Cheng ♦ Zhong, Mingmin ♦ Wu, Zhengmao
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ♦ ELECTRON CORRELATION ♦ ELECTRON SPECTRA ♦ EXPERIMENTAL DATA ♦ IONIZATION ♦ LASERS ♦ PULSES
Abstract We investigate nonsequential double ionization (NSDI) of molecules by few-cycle laser pulses at the laser intensity of 1.2–1.5 × 10{sup 14} W/cm{sup 2} using the classical ensemble model. The same double-line structure as the lower intensity (1.0 × 10{sup 14} W/cm{sup 2}) is also observed in the correlated electron momentum spectra for 1.2–1.4 × 10{sup 14} W/cm{sup 2}. However, in contrast to the lower intensity where NSDI proceeds only through the recollision-induced double excitation with subsequent ionization (RDESI) mechanism, here, the recollision-induced excitation with subsequent ionization (RESI) mechanism has a more significant contribution to NSDI. This indicates that RDESI is not necessary for the formation of the double-line structure and RESI can give rise to the same type of structure independently. Furthermore, we explore the ultrafast dynamics underlying the formation of the double-line structure in RESI.
ISSN 00219606
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-07-28
Publisher Place United States
Journal Journal of Chemical Physics
Volume Number 145
Issue Number 4


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