title: Dissociative double ionization of 1-bromo-2-chloroethane irradiated by an intense femtosecond laser field.
abstract: The dissociative double ionization and multi-photon ionization of 1-bromo-2-chloroethane (BCE) irradiated by the 800 nm femtosecond laser field have been investigated by dc-slice imaging technology. The charged parent ion ratio [BCE(2+)]/[BCE(+)] was measured, and the corresponding ionization process including non-sequential double ionization and sequential double ionization was analyzed. The sliced images of different photo-dissociated ions were detected, and the corresponding kinetic energy release (KER) distributions were calculated and extracted. Furthermore, the dissociative double ionization channels, attributed to the cleavage of the C-C, C-Br, and C-Cl bonds by the Coulombic repulsive forces, were discussed, and the revised equilibrium distance R(e)*, the energy ratio E(exp)/E(coul), and the value a=√(R(e)*)/(E(exp)/E(coul)) were calculated.
authors.affiliation: State Key Laboratory of Precision Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062, People's Republic of China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Yang
authors.forename: Lulu
authors.initials: L
authors.lastname: Fan
authors.forename: Shengzhi
authors.initials: S
authors.lastname: Sun
authors.forename: Jian
authors.initials: J
authors.lastname: Zhang
authors.forename: Yuting
authors.initials: Y
authors.lastname: Chen
authors.forename: Shian
authors.initials: S
authors.lastname: Zhang
authors.forename: Tianqing
authors.initials: T
authors.lastname: Jia
authors.forename: Zhenrong
authors.initials: Z
authors.lastname: Sun