Modeling of continuous absorption of electromagnetic radiation in dense partially ionized plasmas

TL;DR

This paper introduces a new modeling approach for calculating spectral absorption coefficients in dense, partially ionized hydrogen plasmas, relevant for laboratory and stellar atmosphere applications.

Contribution

A novel empirical modeling method for continuous electromagnetic absorption in dense, partially ionized hydrogen plasmas is developed and applied to specific wavelength ranges.

Findings

Effective calculation of spectral absorption coefficients for dense plasmas.

Applicable to laboratory and stellar atmosphere plasma layers.

Method covers wavelengths from 300nm to 500nm.

Abstract

A new modeling way of describing the continuous absorption of electromagnetic (EM) radiation in dense partially ionized hydrogen plasma is tested in this work. It is shown that the obtained results give a possibility of calculating spectral absorption coefficients which characterize the relevant absorption processes in partially ionized hydrogen plasmas with electron densities $N_{e} \sim 10^{19}cm^{-3}$ and temperatures $T \approx 2\cdot 10^{4}K$. A key parameter of the used procedure is determined empirically. The calculation method is applied to wavelength region $300nm < \lambda < 500nm$. The presented results can be of interest for dense laboratory plasmas as well as for partially ionized layers of different stellar atmospheres.