Electric and Magnetic Excitation of Coherent Magnetic Plasmon Waves in a One-dimensional Meta-chain

TL;DR

This paper demonstrates broadband coherent magnetic plasmon waves in a one-dimensional meta-chain, excited by electric and magnetic resonances, with potential applications in nanoscale integrated circuits.

Contribution

It introduces a novel meta-chain design that supports broadband coherent magnetic plasmon waves excited by dual resonances, validated by experiments and theoretical modeling.

Findings

Broadband coherent MPWs are excited over a wide frequency range (200-230 THz).

Experimental dispersion measurements agree with Lagrange model calculations.

The system operates effectively over a wide range of incidence angles (0°-40°).

Abstract

A one-dimensional diatomic meta-chain with equal-size holes and different-length slits is designed. Broadband coherent magnetic plasmon waves (MPW) are formed in such a system, excited by both the electric resonance in the slits and the magnetic resonance in the holes in a wide range of incidence angles (00-400) and broad frequency bands (200-230 THz). The dispersion properties of the MPW measured in our experiments agree with the theoretical calculation based on the Lagrange model. The coherent MPWs reported in this paper may have applications in subwavelength integrated nanocircuits.