Consideration on relation between penetrated power and topological charge of millimeter-wave vortex in magnetized plasma

TL;DR

This paper investigates how the penetrated power of millimeter-wave vortices in magnetized plasma depends on topological charge and waveguide parameters, using FDTD simulations to reveal key relationships.

Contribution

It provides a detailed analysis of the dependence of vortex power penetration on topological charge and waveguide size in magnetized plasma, which was not previously well understood.

Findings

Penetrated power varies significantly with topological charge.

Waveguide radius influences the deviation of topological charge.

Strong dependence of power on topological charge l.

Abstract

It was demonstrated that the vortex field of a hybrid mode can propagate in the mag-netized plasma region where plane waves are unable to propagate due to the cut-off condition. In this study, the dependence of the penetrated power of injected as millime-ter-wave vortices of the hybrid mode in magnetized plasma is analyzed using the Fi-nite-Difference Time-Domain (FDTD) method. The effect of the radius size of the cor-rugated waveguide on the penetrated power is described, revealing its significant con-tribution to reducing the deviation of topological charge in the hybrid mode. Further-more, it was found that the penetrated power of the vortex field in magnetized plasma strongly depends on the topological charge l and the deviation of topological charge