Plasma fibre using bright-core helicon plasma
Abstract
This paper reports an innovative concept of ``plasma fibre" using bright-core helicon plasma, inspired by its spatial and spectral similarities to the well-known optical fibre. Theoretical analyses are presented for both ideal case of step-like density profile and the realistic case of Gaussian density profile in radius. The total reflection of electromagnetic waves near the sharp plasma density gradient and consequently the wave-guide feature could indeed happen if the incident angle is larger than a threshold value. Numerical computations using electromagnetic solver that based on Maxwell's equations and cold-plasma dielectric tensor yield consistent results. The experimental verification and prospective applications are also suggested. The ``plasma fibre" could be functional component that embedded into existing communication systems for special purpose based on its capability of dynamic reconfiguration.
Cite
@article{arxiv.2510.27105,
title = {Plasma fibre using bright-core helicon plasma},
author = {Lei Chang and Zi-Chen Kan and Jing-Jing Ma and Saikat Chakraborty Thakur and Juan Francisco Caneses},
journal= {arXiv preprint arXiv:2510.27105},
year = {2025}
}