Low‐Loss Epsilon‐Near‐Zero Metamaterials (Laser Photonics Rev. 17(8)/2023)

Abstract

Low-Loss Epsilon-Near-Zero Metamaterials Losses in epsilon-near-zero metamaterials limit the extension of the exotic concept from ideal cases to practical applications. In article number 2201000, Yue Li and colleagues propose a dielectric-free approach that applies the metal-layer as inductor-capacitor resonance to replace the dielectric dopant in conventional photonic doping. As a solution to the losses, this approach achieves the best quality of epsilon-near-zero metamaterials, which has the largest tuning range of effective permeability.