Numerical simulations of terahertz double-negative metamaterial with isotropic-like fishnet structure

被引:30
作者
Ding, P. [1 ,2 ,3 ]
Liang, E. J. [1 ,2 ]
Hu, W. Q. [1 ,2 ,4 ]
Zhang, L. [1 ,2 ]
Zhou, Q. [1 ,2 ]
Xue, Q. Z. [5 ]
机构
[1] Zhengzhou Univ, Minist Educ China, Sch Phys Sci & Engn, Zhengzhou 450052, Peoples R China
[2] Zhengzhou Univ, Minist Educ China, Key Lab Mat Phys, Zhengzhou 450052, Peoples R China
[3] Zhengzhou Inst Aeronaut Ind Management, Dept Math & Phys, Zhengzhou 450015, Peoples R China
[4] Donghua Univ, Dept Appl Phys, Shanghai 201620, Peoples R China
[5] Chinese Acad Sci, Inst Elect, Beijing 100080, Peoples R China
关键词
Metamaterial; Negative refractive index; Double-negative; Terahertz; Isotropic-like fishnet structure; INDEX METAMATERIALS; PHOTONIC METAMATERIALS; REFRACTIVE-INDEX; WAVELENGTHS; FREQUENCIES;
D O I
10.1016/j.photonics.2008.12.005
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The isotropic-like fishnet metamaterial with an array of cross-shaped holes penetrating through the multiple layers has been numerically studied in the terahertz regime. Its left-handed properties are described by the retrieved effect media parameters and validated by the simulation of a wedge-shaped model. The influences of the various geometrical parameters on the electromagnetic response and the left-handed performance are investigated. This isotropic-like fishnet metamaterial has the advantage of lower losses and higher transmission and holds potential for further applications at higher frequencies. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:92 / 100
页数:9
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