Tunable multi-band terahertz absorber based on composite graphene structures with square ring and Jerusalem cross

doi:10.1016/j.rinp.2021.104233

IR > 理学院

	Tunable multi-band terahertz absorber based on composite graphene structures with square ring and Jerusalem cross
	Zhang, Baohe 1; Qi, Yunping 1; Zhang, Ting 1; Zhang, Yu 1; Liu, Weiming 2; Wang, Liyuan 1; Ding, Jinghui 1; Wang, Xiangxian3 ; Yi, Zao 4
	2021-06
发表期刊	RESULTS IN PHYSICS
ISSN	2211-3797
卷号	25
摘要	In this paper, a polarization and angle-insensitive multi-band adjustable terahertz absorber is proposed and numerically investigated, which is composed of a kind of periodic array square graphene ring with a Jerusalem cross graphene sheet. The numerical results indicate that the peaks absorptivity reach 99.9%, 99.9%, and 98.5% at 2.02THz, 3.44 THz, and 7.58 THz, respectively. The three resonance frequencies can be dynamically tuned by varying the chemical potential. Its physical mechanism can be analyzed by using Coupled Mode Theory (CMT) and electric field distribution. Moreover, the designed absorber is insensitive to polarization state and has the capability of wide-angle absorptivity. As a sensing application, the sensing characteristics of this monolayer graphene metasurface structure were investigated. In addition, we can achieve multi-spectral absorption peaks by applying bilayer graphene composite structure arrays. The proposed terahertz absorber may benefit branches of science such as refractive sensors, solar absorption, stealth, and other optoelectronic devices.
关键词	Graphene metasurface Terahertz perfect absorber Angle-independent Tunable
DOI	10.1016/j.rinp.2021.104233
收录类别	SCOPUS ; SCIE
语种	英语
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Multidisciplinary
WOS记录号	WOS:000662180100064
出版者	ELSEVIER
来源库	WOS
引用统计	被引频次：28[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/149003
专题	理学院
通讯作者	Qi, Yunping
作者单位	1.Northwest Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China; 2.Chinese Acad Sci Adv Energy Sci & Technol, Guangdong Lab, Insitute Modern Phys, Huizhou 516000, Peoples R China; 3.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China; 4.Southwest Univ Sci & Technol, Joint Lab Extreme Condit Matter Properties, Mianyang 621900, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Baohe,Qi, Yunping,Zhang, Ting,et al. Tunable multi-band terahertz absorber based on composite graphene structures with square ring and Jerusalem cross[J]. RESULTS IN PHYSICS,2021,25.
APA	Zhang, Baohe.,Qi, Yunping.,Zhang, Ting.,Zhang, Yu.,Liu, Weiming.,...&Yi, Zao.(2021).Tunable multi-band terahertz absorber based on composite graphene structures with square ring and Jerusalem cross.RESULTS IN PHYSICS,25.
MLA	Zhang, Baohe,et al."Tunable multi-band terahertz absorber based on composite graphene structures with square ring and Jerusalem cross".RESULTS IN PHYSICS 25(2021).