Triple-band metamaterial absorber based on single resonator

被引：28

作者：

Kim, Young Ju ^{[1
,2
]}

Hwang, Ji Sub ^{[1
,2
]}

Yoo, Young Joon ^{[1
,2
]}

Khuyen, Bui Xuan ^{[1
,2
]}

Chen, Xianfeng ^{[3
]}

Lee, YoungPak ^{[1
,2
]}

机构：

[1] Hanyang Univ, Quantum Photon Sci Res Ctr, Dept Phys, Seoul 133791, South Korea

[2] Hanyang Univ, RINS, Seoul 133791, South Korea

[3] Shanghai Jiao Tong Univ, Shanghai, Peoples R China

来源：

CURRENT APPLIED PHYSICS | 2017年 / 17卷 / 10期

关键词：

Metamaterials; Resonance; Subwavelength structures; Nanostructures absorption; PERFECT ABSORBER;

D O I：

10.1016/j.cap.2017.06.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The single resonator generally reveals a single absorption band, and the resonators with different sizes or shapes have to be arranged in order to achieve multi-absorption bands. We propose the triple-band metamaterial absorber by utilizing only single resonator. Meta-atoms are made of the toothed-wheel shape metallic pattern and a continuous metallic plane, separated by a dielectric layer. The first and the third absorption bands are induced by the fundamental and the third-harmonic magnetic resonances, respectively, and the second absorption band is induced by the magnetic resonance relevant to two grooves. In addition, the diffraction peak appears between the second and the third absorption bands, due to the surface currents which are separated between the upper and the lower metallic pattern parts. The proposed structure is scalable to smaller size for the infrared and the visible regimes. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：1260 / 1263

页数：4

共 21 条

[1] Experimental demonstration of ultrasensitive sensing with terahertz metamaterial absorbers: A comparison with the metasurfaces [J].