Tunable plasmonic optical responses and the sensing application in graphene-based metasurface

被引：9

作者：

Li, Zhenxiong ^{[1
]}

Yang, Nengxun ^{[1
]}

Liu, Yiting ^{[2
]}

Li, Li ^{[2
]}

Zhong, Zhenyang ^{[2
]}

Song, Chao ^{[2
]}

He, Zhihui ^{[1
]}

Cui, Wei ^{[1
]}

Li, Lingqiao ^{[1
]}

Li, Chunjiang ^{[1
]}

Chen, Zhiquan ^{[3
]}

He, Hui ^{[4
]}

机构：

[1] Yanan Univ, Sch Phys & Elect Informat, Yanan 716000, Peoples R China

[2] Yanan Univ, Affiliated Hosp, Yanan 716000, Peoples R China

[3] Hunan Univ Technol & Business, Sch Math & Stat, Changsha 410205, Peoples R China

[4] Hainan Univ, Coll Appl Sci & Technol, Danzhou 571737, Peoples R China

来源：

基金：

中国国家自然科学基金;

关键词：

Plasmonic; Graphene; Fermi energy; Sensing; INDUCED TRANSPARENCY; METAMATERIALS;

D O I：

10.1016/j.diamond.2022.109071

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It is meaningful that the sensing performance is achieved in a simple graphene structure. In this paper, we proposed a simple graphene-based metasurface structure which contain a graphene ribbon and U-shaped graphene pattern, showing outstanding sensing performance in terahertz band. The transmission spectrum with three dips is excited in our proposed structure calculated by the finite-difference time domain (FDTD) simulation method. The results show that the transmission spectrum with three dips can be effectively tuned by the Fermi energy. Intriguingly, the tri-frequency detection of the sensing performance is focused on the proposed graphenebased metasurface. The maximum of sensitivity and figure of merit(FOM) for the sensing performance are 3.4269 THz/RIU and 21.92, respectively. These research results may pave the way for the development of optical terahertz sensing devices.

引用

页数：5

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