Effects of resonant tunneling in electromagnetic wave propagation through a polariton gap

TL;DR

This paper investigates how electromagnetic waves tunnel through a polariton gap in a 1-D atomic chain, revealing that defects induce resonant transmission and lead to localized polariton states, with numerical simulations supporting these findings.

Contribution

It provides an analytical demonstration of defect-induced resonant tunneling and explores the formation of localized polariton states within the gap through numerical simulations.

Findings

Defects cause resonant transmission at local polariton frequencies.

Localized polariton states form around defects.

Finite defect concentration modifies the electromagnetic band structure.

Abstract

We consider tunneling of electromagnetic waves through a polariton band gap of a 1-D chain of atoms. We analytically show that a defect embedded in the structure gives rise to the resonance transmission at the frequency of a local polariton state associated with the defect. Numerical Monte-Carlo simulations are used to examine properties of the electromagnetic band arising inside the polariton gap due to finite concentration of defects.