# ClassSTRONG: Classical simulations of strong field processes

## Description

Abstract A set of Mathematica functions is presented to model classically two of the most important processes in strong field physics, namely high-order harmonic generation (HHG) and above-threshold ionization (ATI). Our approach is based on the numerical solution of the Newton–Lorentz equation of an electron moving on an electric field and takes advantage of the symbolic languages features and graphical power of Mathematica. Like in the Strong Field Approximation (SFA), the effects of atomic potentia... Title of program: ClassSTRONG Catalogue Id: AEQV_v1_0 Nature of problem The Mathematica functions model high-order harmonic generation (HHG) and above-threshold ionization (ATI) using the classical equations of motion of an electron moving in an oscillating electric field. In Strong Field Physics HHG and ATI represent two of the most prominent examples of the nonperturbative interaction between strong laser sources and matter. In HHG an atomic or molecular bound electron is put into the continuum by the external laser electric field. Due to the oscillatory nature of ... Versions of this program held in the CPC repository in Mendeley Data AEQV_v1_0; ClassSTRONG; 10.1016/j.cpc.2013.09.009 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)