Software package StarkD for calculating atomic emission spectra in an alternating electric field

Abstract

In the present work, the software package StarkD for calculating the emission spectra of atoms in an alternating circularly polarized electric field is presented. The emission spectra are calculated by the numerical method based on diagonalization of the energy matrix of an atom in an electric field. This method is free from limitations of perturbation theory and valid in wide ranges of the electric field frequency and strength. The package StarkD allows us to calculate the positions of the Stark components of atomic spectral lines as well as the transition probabilities, line intensities, and spectral line profiles of atoms in the electric field. The package capabilities are illustrated by the examples of calculating the emission spectra of He, Ne, Ar, and Kr atoms in the electric field. The calculations have allowed us to establish a number of interesting theoretical regularities and to analyze mechanisms of the formation of atomic spectra in the electric field.