To the optical properties of moderately non-ideal plasma

The optical properties of non-ideal completely ionized plasma are discussed from the perspective of the kinetic theory approach. It is demonstrated that a physically motivated modification of the Coulomb logarithm, originally proposed in the context of ion-particle scattering in dusty plasma, allows us to improve the theoretical description of the dynamical conductivity and hence of the optical properties of plasma in the moderately non-ideal regime. The obtained analytical results for the refractive index, reduced absorption and reflection coefficients can be straightforwardly implemented for practical calculations. The comparison between experimental and theoretical results for the reflectivity is performed and discussed in some detail. (C) 2022 Elsevier Ltd. All rights reserved.

Automated summary

The optical properties of non-ideal completely ionized plasma are discussed using the kinetic theory approach. A modification of the Coulomb logarithm improves the theoretical description of the dynamical conductivity and optical properties of moderately non-ideal plasma. Analytical results for refractive index, absorption, and reflection coefficients can be used for practical calculations. Comparison between experimental and theoretical results for reflectivity is discussed.