Exploration of nonsequential-double-ionization dynamics of Mg atoms in linearly and circularly polarized laser fields with different potentials
Journal
Physical Review A - Atomic, Molecular, and Optical Physics
Journal Volume
88
Journal Issue
2
Date Issued
2013
Author(s)
Abstract
The nonsequential double ionization (NSDI) of Mg atoms is investigated in both linearly and circularly polarized laser fields with different kinds of potentials. The numerical results indicate that the ``knee'' structure still exists in circularly polarized laser fields in the 800-nm case with different potentials, which can be well explained by the corresponding momentum and position distribution of electrons. Moreover, the ionized electron energy of Mg atoms at the end of the pulse also shows that the behavior of rescattering electrons is different between linearly and circularly polarized cases. Besides, we also look into the angular distribution at the end of the pulse with different kind of potentials to illustrate the difference in the double-ionization mechanism between the linearly and circularly polarized cases.
SDGs
Type
journal article