A multi-band and polarization-independent perfect absorber based on Dirac semimetals circles and semi-ellipses array*

doi:10.1088/1674-1056/abfb57

CORC > 兰州理工大学 > 兰州理工大学 > 理学院

	A multi-band and polarization-independent perfect absorber based on Dirac semimetals circles and semi-ellipses array*
	Li, Zhiyou 1; Yi, Yingting 5; Xu, Danyang 4; Yang, Hua 6; Yi, Zao 1; Chen, Xifang 1; Yi, Yougen 5; Zhang, Jianguo 3; Wu, Pinghui 2
刊名	CHINESE PHYSICS B
	2021-09
卷号	30 期号:9
关键词	metamaterials terahertz block Dirac semi-metal localized surface plasmon resonance
ISSN号	1674-1056
DOI	10.1088/1674-1056/abfb57
英文摘要	We design a four-band terahertz metamaterial absorber that relied on the block Dirac semi-metal (BDS). It is composed of a Dirac material layer, a gold reflecting layer, and a photonic crystal slab (PCS) medium layer. This structure achieved perfect absorption of over 97% at 4.06 THz, 6.15 THz, and 8.16 THz. The high absorption can be explained by the localized surface plasmon resonance (LSPR). And this conclusion can be proved by the detailed design of the surface structure. Moreover, the resonant frequency of the device can be dynamically tuned by changing the Fermi energy of the BDS. Due to the advantages such as high absorption, adjustable resonance, and anti-interference of incident angle and polarization mode, the Dirac semi-metal perfect absorber (DSPA) has great potential value in fields such as biochemical sensing, information communication, and nondestructive detection.
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000696693500001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148544]
专题	理学院
作者单位	1.Southwest Univ Sci & Technol, Joint Lab Extreme Condit Matter Properties, Mianyang 621010, Sichuan, Peoples R China; 2.Quanzhou Normal Univ, Res Ctr Photon Technol, Key Lab Informat Funct Mat Fujian Higher Educ, Quanzhou 362000, Fujian, Peoples R China 3.Jinzhong Univ, Dept Phys & Elect Engn, Jinzhong 030619, Peoples R China; 4.Zhejiang Univ Technol, Coll Sci, Hangzhou 310023, Zhejiang, Peoples R China; 5.Cent South Univ, Coll Phys & Elect, Changsha 410083, Peoples R China; 6.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China;
推荐引用方式 GB/T 7714	Li, Zhiyou,Yi, Yingting,Xu, Danyang,et al. A multi-band and polarization-independent perfect absorber based on Dirac semimetals circles and semi-ellipses array*[J]. CHINESE PHYSICS B,2021,30(9).
APA	Li, Zhiyou.,Yi, Yingting.,Xu, Danyang.,Yang, Hua.,Yi, Zao.,...&Wu, Pinghui.(2021).A multi-band and polarization-independent perfect absorber based on Dirac semimetals circles and semi-ellipses array*.CHINESE PHYSICS B,30(9).
MLA	Li, Zhiyou,et al."A multi-band and polarization-independent perfect absorber based on Dirac semimetals circles and semi-ellipses array*".CHINESE PHYSICS B 30.9(2021).