Dependence of two-electron correlated dynamics on the relative phase of two-color orthogonal laser pulse

Tóm tắt

In this paper, the correlated dynamics between two ionized electrons under the influence of the orthogonal two-color laser pulse consisting of 800-nm and 400-nm fields were analyzed. Trajectory analysis indicates that the moment of double ionization and the repulsive force between two ionized electrons are responsible to the strong modification of the two-electron momentum distribution in the direction parallel to the polarization axis of 800-nm field with respect to the variation of the relative phase of the pulse. The out-of-plane effect is also considered to explain the dependence of He²⁺ yield on the relative phase.