Coulomb explosion of CS₂ molecule under an intense femtosecond laser field

We experimentally demonstrate the Coulomb explosion process of CS₂ molecule under a near-infrared (800 nm) intense femtosecond laser field by a DC-sliced ion imaging technique. We obtain the DC-sliced images of these fragment ions S⁺, S²⁺, CS⁺, and CS²⁺ by breaking one C–S bond, and assign their Coulomb explosion channels by considering their kinetic energy release and angular distribution. We also numerically simulate the dissociation dynamics of parent ions by a Coulomb potential approximation, and obtain the time evolution of Coulomb energy and kinetic energy release, which indicates that the dissociation time of parent ions decreases with the increase of the charge number k . These experimental and theoretical results can serve as a useful benchmark for those researchers who work in the related area. (paper)