Modular multiscale approach to modelling high-harmonic generation in gases

TL;DR

This paper introduces a modular simulation toolbox for high-harmonic generation in gases, enabling detailed modeling of the process from pulse propagation to far-field harmonic calculation with user-friendly interfaces.

Contribution

The authors develop a flexible, user-oriented simulation toolkit that integrates multiple computational modules for modeling high-harmonic generation in gases, including propagation, microscopic response, and far-field analysis.

Findings

Provides a comprehensive, modular simulation pipeline

Includes user-friendly interfaces and tutorials

Facilitates deployment on local and HPC systems

Abstract

We present a modular user-oriented simulation toolbox for studying highharmonic generation in gases. The first release consists of the computational pipeline to 1) compute the unidirectional IR-pulse propagation incylindrical symmetry, 2) solve the microscopic responses in the whole macroscopic volume using a 1D-TDSE solver, 3) obtain the far-field harmonic field using a diffraction-integral approach. The code comes with interfaces and tutorials, based on practical laboratory conditions, to facilitate the usage and deployment of the code both locally and in HPC-clusters. Additionally, the modules are designed to work as stand-alone applications as well, e.g., 1D-TDSE is available through Pythonic interface.