Conductively coupled terahertz metamaterials with dual functions of electromagnetically induced transparent and Fano effects for sensing applications

被引：0

作者：

Chen, Yuxuan ^{[1
]}

Sun, Yongzheng ^{[1
]}

Zhou, Weijun ^{[1
]}

Qin, Xuefeng ^{[1
]}

Zhao, Qian ^{[1
]}

Wang, Yueke ^{[1
]}

Wang, Ben-Xin ^{[1
,2
]}

机构：

[1] Jiangnan Univ, Sch Sci, Wuxi, Peoples R China

[2] Soochow Univ, Educ Minist China, Key Lab Modern Opt Technol, Suzhou 215006, Peoples R China

来源：

PHYSICA SCRIPTA | 2024年 / 99卷 / 10期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

terahertz metamaterial; bifunctional resonance response; electromagnetically induced transparency; Fano resonance; RESONANCES; ANALOG; LIGHT; SLOW;

D O I：

10.1088/1402-4896/ad7338

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A terahertz metamaterial structure consisting of two U-shaped split-ring resonators and a horizontal cut-line resonator is designed for realizing the electromagnetically induced transparency (EIT) effect and the Fano resonance effect. The genesis of the EIT and Fano resonance bifunctionality is illustrated by combining the near-field distribution analysis of transparent windows and transmission dips. Interestingly, the bifunctional dual-band transparency effect could transform into a single-functional single-band transparency effect when we change the position of the square metal sheet in the vertical direction of the composited terahertz metamaterial structure. In addition, based on the high-quality factor of Fano resonance response, the proposed bifunctional terahertz metamaterial device has good refractive index sensing sensitivity. These results indicate that our proposed terahertz metamaterial can provide guidance for the design of subsequent multifunctional and integrated metamaterials and optoelectronic devices.

引用

页数：9

共 53 条

[31] High-Q-value classical electromagnetically induced transparency based on dipoles overlapping at spoof localized surface plasmons [J].