Double Spectral Electromagnetically Induced Transparency Based on Double-Bar Dielectric Grating and Its Sensor Application

被引：14
|
作者：
Li, Guofeng [1 ,2 ]
Yang, Junbo [2 ]
Zhang, Zhaojian [2 ]
Wen, Kui [2 ]
Tao, Yuyu [1 ]
Han, Yunxin [2 ]
Zhang, Zhenrong [1 ]
机构：
[1] Guangxi Univ, Sch Comp Elect & Informat, Guangxi Key Lab Multimedia Commun & Network Techn, Nanning 530004, Peoples R China
[2] Natl Univ Def Technol, Ctr Mat Sci, Changsha 410073, Peoples R China
来源：
APPLIED SCIENCES-BASEL | 2020年 / 10卷 / 09期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
guided-mode resonance; electromagnetically induced transparency; high quality factor; double spectral; refractive index sensor; ANALOG; METAMATERIAL;
D O I：
10.3390/app10093033
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The realization of the electromagnetically induced transparency (EIT) effect based on guided-mode resonance (GMR) has attracted a lot of attention. However, achieving the multispectral EIT effect in this way has not been studied. Here, we numerically realize a double EIT-ike effect with extremely high Q factors based on a GMR system with the double-bar dielectric grating structure, and the Q factors can reach 35,104 and 24,423, respectively. Moreover, the resonance wavelengths of the two EIT peaks can be flexibly controlled by changing the corresponding structural parameters. The figure of merit (FOM) of the dual-mode refractive index sensor based on this system can reach 571.88 and 587.42, respectively. Our work provides a novel method to achieve double EIT-like effects, which can be applied to the dual mode sensor, dual channel slow light and so on.
引用
收藏
页数：10
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