Simulating Strong Field Tunnel Ionization of Molecules

Author:

Ortmann L.,AlShafey A.,Staudte A.,Landsman A. S.

Abstract

AbstractRecently we introduced a method to quantify the relative contribution of upfield versus downfield ionization when a diatomic molecule is exposed to intense infrared light [1]. Applying this to previously measured electron momenta distributions following strong field ionization of N2, we found approximately a 2∶1 ratio of electrons ionized from a downfield atom, relative to upfield. This suggests that the bound state wave function largely adapts adiabatically to the changing laser field, although the nonadiabatic process of ionization enhancement still contributes significantly even in neutral molecules. Here, we discuss the Quantum Trajectory Monte Carlo (QTMC) used to simulate electron trajectories, and explore possible modifications of the model [1].

Publisher

Springer International Publishing

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