Low Loss Light Feld Modes in Nano Planar Waveguide: An Analytical Approach Based on the Rytov-Leontovich Boundary Conditions

TL;DR

This paper presents an analytical method using Rytov-Leontovich boundary conditions to analyze low-loss light modes in nano planar waveguides with dielectric-metamaterial interfaces, confirmed by numerical calculations.

Contribution

It introduces a new analytical approach for studying low-loss surface plasmon-polariton modes in nano waveguides with dielectric-metamaterial interfaces.

Findings

Identifies conditions for low-loss surface modes.

Validates analytical results with numerical calculations.

Provides generalized conditions for the analytical approach.

Abstract

We develop an analytical approach based on the Rytov-Leontovich boundary conditions to study light field modes in the nano planar waveguides. The analytical results thus obtained demonstrate new conditions for optical low loss surface plasmon-polariton modes in the planar waveguides with dielectric-metamaterial interfaces. The obtained results are confirmed with existing numerical calcultions. More general conditions for using the proposed analytical approach to study light field in the nano waveguides are also considered.