Nonlinear waves propagating in a hollow metamaterial waveguide

Abstract

This work studies a hollow nonlinear Metamaterial–Air–Metamaterial (MAM) waveguide and investigates the propagation characteristics of transverse electric waves in the MAM waveguide. It is shown that the waves propagate in the waveguide in the form of guided waves or surface waves. Furthermore, the electromagnetic fields are distributed in a symmetric or an antisymmetric mode depending on the frequency response of nonlinear metamaterial to the incident waves. Moreover, the power distribution in the MAM waveguide can be controlled by adjusting the width of the guiding layer of the hollow waveguide. We hope the theoretical analysis can be verified by future experiments and provide ideas on potential applications.