Propogation of Electromagnetic Waves in the Core of a String Defect in Liquid Crystals

TL;DR

This paper studies how electromagnetic waves propagate within the core of a string defect in nematic liquid crystals, revealing guided modes caused by refractive index variations linked to the scalar order parameter.

Contribution

It introduces a numerical analysis of wave equations for TE modes in liquid crystal defects, demonstrating the existence of guided electromagnetic modes.

Findings

Guided modes exist in the defect core due to refractive index variation.

Wave equations for TE modes are numerically solved.

Refractive index variation is linked to the scalar order parameter.

Abstract

We investigate the propagation of electromagnetic waves in the core of a winding number one string defect with isotropic core in nematic liquid crystals. We numerically solve wave equations for the TE mode and show the existence of guided modes arising due to the variation of the refractive index as a function of the scalar order parameter.