High refractive index sensitivity adjustable six band absorber based on dual regulation of embedded Dirac semi metal and active graphene

doi:10.1016/j.diamond.2023.109944

科研成果详情

题名	High refractive index sensitivity adjustable six band absorber based on dual regulation of embedded Dirac semi metal and active graphene
作者	Fang, Long 1; Zhao, Wenchao 2; Ma, Jing 3; Liang, Shiri 3; Shangguan, Qianyi 3; Cheng, Shubo 3; Li, Wenxin 3; Cai, Shuangshuang4
发表日期	2023-06
发表期刊	DIAMOND AND RELATED MATERIALS 影响因子和分区
语种	英语
原始文献类型	Article
关键词	Graphene Dirac semimetal Perfect absorption Multiband absorption Terahertz Active dual regulation
其他关键词	PLASMON-INDUCED TRANSPARENCY ; MONOLAYER GRAPHENE ; TERAHERTZ ; MULTIBAND ; METAMATERIAL ; RESONANCE ; SHEET
摘要	Terahertz technology is of great significance for the development of science. The research on THz optical devices will enable us to further understand THz technology. In this paper, a High refractive index sensitivity adjustable six band absorber based on dual regulation of embedded Dirac semi metal and active graphene is proposed, which can be divided into three layers, the top layer of bulk Dirac semi metal (DBS) layer, the middle layer of graphene and the bottom layer of gold substrate. The absorber has six absorption modes, which mode I-V is located in the THz band and mode VI is located at the edge of the THz band and in the infrared band. The absorptivity of four absorption modes of the absorber is higher than 0.99, and the relative impedance of the absorber in the working area is indirectly close to the impedance value in free space, which is consistent with the classical theory. After analysis, the absorption of electromagnetic wave by the absorber mainly came from the local surface plasmon resonance caused by the light wave excitation of the plasma on the material surface and the resonance coupling between the BDS layer and the graphene layer. By tuning the physical parameters, the Fermi energy of BDS layer and graphene layer, the absorber shows strong tunability. In the sensor performance test, the absorber has high refractive index sensitivity in most modes. The superior properties of the absorber make it have high application potential in communication, biomedicine and other fields.
资助项目	Scientific Research Project of Huzhou College[2022HXKM07];National Natural Science Foundation of China[11904032];
出版者	ELSEVIER SCIENCE SA
ISSN	0925-9635
EISSN	1879-0062
卷号	136
DOI	10.1016/j.diamond.2023.109944
页数	9
WOS类目	Materials Science, Multidisciplinary ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS研究方向	Materials Science ; Physics
WOS记录号	WOS:000989904800001
收录类别	SCIE ; EI ; SCOPUS
在线发表日期	2023-04
EI入藏号	20231814028221
EI主题词	Graphene
EI分类号	701.1 Electricity: Basic Concepts and Phenomena ; 711 Electromagnetic Waves ; 741.1 Light/Optics ; 761 Nanotechnology ; 804 Chemical Products Generally
URL	查看原文
Scopus记录号	2-s2.0-85153683716
通讯作者地址	[Cheng, Shubo]School of Physics and Optoelectronic Engineering,Yangtze University,Hubei,Jingzhou,434023,China
scopus学科分类	Electronic, Optical and Magnetic Materials;Chemistry (all);Mechanical Engineering;Physics and Astronomy (all);Materials Chemistry;Electrical and Electronic Engineering
引用统计
文献类型	期刊论文
条目标识符	https://kms.wmu.edu.cn/handle/3ETUA0LF/180057
专题	眼视光学院（生物医学工程学院）、附属眼视光医院仁济学院_眼视光、生物医学工程学部
通讯作者	Cheng, Shubo
作者单位	1.College of Energy and Power Engineering,Inner Mongolia University of Technology,Hohhot,010051,China; 2.Department of Electronics,School of Electronic Information,Huzhou College,Huzhou,313000,China; 3.School of Physics and Optoelectronic Engineering,Yangtze University,Hubei,Jingzhou,434023,China; 4.School of Biomedical Engineering,Wenzhou Medical University,Wenzhou,325035,China
推荐引用方式 GB/T 7714	Fang, Long,Zhao, Wenchao,Ma, Jing,et al. High refractive index sensitivity adjustable six band absorber based on dual regulation of embedded Dirac semi metal and active graphene[J]. DIAMOND AND RELATED MATERIALS,2023,136.
APA	Fang, Long., Zhao, Wenchao., Ma, Jing., Liang, Shiri., Shangguan, Qianyi., ... & Cai, Shuangshuang. (2023). High refractive index sensitivity adjustable six band absorber based on dual regulation of embedded Dirac semi metal and active graphene. DIAMOND AND RELATED MATERIALS, 136.
MLA	Fang, Long,et al."High refractive index sensitivity adjustable six band absorber based on dual regulation of embedded Dirac semi metal and active graphene".DIAMOND AND RELATED MATERIALS 136(2023).