A multi-band and polarization-independent perfect absorber based on Dirac semimetals circles and semi-ellipses array* | |
Li, Zhiyou1; Yi, Yingting3; Xu, Danyang4; Yang, Hua2; Yi, Zao1; Chen, Xifang1; Yi, Yougen3; Zhang, Jianguo5; Wu, Pinghui6 | |
2021-09 | |
发表期刊 | CHINESE PHYSICS B |
ISSN | 1674-1056 |
卷号 | 30期号:9 |
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. |
关键词 | metamaterials terahertz block Dirac semi-metal localized surface plasmon resonance |
DOI | 10.1088/1674-1056/abfb57 |
收录类别 | EI ; SCOPUS ; SCIE ; CSCD |
语种 | 英语 |
WOS研究方向 | Physics |
WOS类目 | Physics, Multidisciplinary |
WOS记录号 | WOS:000696693500001 |
出版者 | IOP PUBLISHING LTD |
来源库 | WOS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/148544 |
专题 | 理学院 |
通讯作者 | Yi, Zao; Wu, Pinghui |
作者单位 | 1.Southwest Univ Sci & Technol, Joint Lab Extreme Condit Matter Properties, Mianyang 621010, Sichuan, Peoples R China; 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China; 3.Cent South Univ, Coll Phys & Elect, Changsha 410083, Peoples R China; 4.Zhejiang Univ Technol, Coll Sci, Hangzhou 310023, Zhejiang, Peoples R China; 5.Jinzhong Univ, Dept Phys & Elect Engn, Jinzhong 030619, Peoples R China; 6.Quanzhou Normal Univ, Res Ctr Photon Technol, Key Lab Informat Funct Mat Fujian Higher Educ, Quanzhou 362000, Fujian, 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). |
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