Aperiodic-metamaterial-based absorber

Quanlong Yang,Yuehong Xu,Zhen Tian,Jiaguang Han,Weili Zhang,Chunmei Ouyang,Yanfeng Li,Xieyu Chen,Jianqiang Gu,Xueqian Zhang

doi:10.1063/1.4996112

Quanlong Yang, Yuehong Xu + Show 8 more

Open Access

https://doi.org/10.1063/1.4996112

Copy DOI

Journal: APL materials	Publication Date: Sep 1, 2017
Citations: 25	License type: cc-by

Affiliation: Tianjin University, Oklahoma State University

Abstract

The periodic-metamaterial-based perfect absorber has been studied broadly. Conversely, if the unit cell in the metamaterial-based absorber is arranged aperiodically (aperiodic-metamaterial-based absorber), how does it perform? Inspired by this, here we present a systematic study of the aperiodic-metamaterial-based absorber. By investigating the response of metamaterial absorbers based on periodic, Fibonacci, Thue-Morse, and quasicrystal lattices, we found that aperiodic-metamaterial-based absorbers could display similar absorption behaviors as the periodic one in one hand. However, their absorption behaviors show different tendency depending on the thicknesses of the spacer. Further studies on the angle and polarization dependence of the absorption behavior are also presented.

Highlights

Recent years have seen the rapid emergence of a new class of perfect absorbers based on metamaterials, which have shown unique characteristics and abilities to control electromagnetic waves in an amazing manner.[1,2,3,4,5,6,7,8,9,10,11,12,13]
The property of near-perfect absorption of the metamaterial-based absorber paves the way for achieving numerous potential applications in sensing,[14,15] cloaking,[16,17,18] photovoltaics,[19,20,21,22,23] and so on
Periodic absorbers are generally regarded as homogenized structures, and their absorption behaviors are analyzed by effective constitutive parameter calculations

Summary

Introduction

Recent years have seen the rapid emergence of a new class of perfect absorbers based on metamaterials, which have shown unique characteristics and abilities to control electromagnetic waves in an amazing manner.[1,2,3,4,5,6,7,8,9,10,11,12,13] The property of near-perfect absorption of the metamaterial-based absorber paves the way for achieving numerous potential applications in sensing,[14,15] cloaking,[16,17,18] photovoltaics,[19,20,21,22,23] and so on. Periodic design (periodic-metamaterial-based absorber, PMA) with the same unit cell is investigated as a comparison. We find similar absorbing behaviors between the aperiodic absorbers and the periodic one, while a pronounced dependence of the absorption on the spacer thickness shows diverse performances between them.

Results

Conclusion