Broadband Epsilon-Near-Zero Metamaterials with Step-Like Metal-Dielectric Multilayer Structures
Optics
2015-06-15 v1
Abstract
The concept of the broadband epsilon-near-zero meta-atom consisting of layered stacks with specified metallic filling ratio and thickness is proposed based on the Bergman spectral representation of the effective permittivity. The step-like metal-dielectric multilayer structures are designed to achieve realistic broadband epsilon-near-zero meta-atoms in optical frequency range. These meta-atoms can be integrated as building blocks for unconventional optical components with exotic electromagnetic properties over a wide frequency range, such as the demonstrated broadband directional emission and phase front shaping.
Keywords
Cite
@article{arxiv.1304.6634,
title = {Broadband Epsilon-Near-Zero Metamaterials with Step-Like Metal-Dielectric Multilayer Structures},
author = {Lei Sun and Jie Gao and Xiaodong Yang},
journal= {arXiv preprint arXiv:1304.6634},
year = {2015}
}
Comments
18 pages, 7 figures