Open AccessIntensity-dependent study of strong-field Coulomb explosion of H_2
Author(s) -
Peng Peng,
Sisi Peng,
Hanjun Hu,
Na Li,
Ya Bai,
Peng Liu,
Huailiang Xu,
Ruxin Li,
Zhizhan Xu
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.018763
Subject(s) - coulomb explosion , ionization , coulomb , dissociation (chemistry) , atomic physics , laser , intensity (physics) , fragmentation (computing) , physics , optics , chemistry , ion , nuclear physics , electron , quantum mechanics , operating system , computer science
We demonstrate experimentally that in pump-probe experiment of H2 fragmentation by intense laser fields, the Coulomb explosion (CE) paths induced by the second ionization of dissociating H2+ show varied dependencies on the laser intensity. While the charge resonance enhanced ionization (CREI) channel is intensity dependent, the probe induced CE (PICE) channel is intensity independent at certain delay time. By using a classical model, we calculated the dissociation trajectories which agree well with the experimental data.