A multi-band and polarization-independent perfect absorber based on Dirac semimetals circles and semi-ellipses array
Zhiyou Li(李治友)1,†, Yingting Yi(易颖婷)3,†, Danyang Xu(徐丹阳)4, Hua Yang(杨华)2, Zao Yi(易早)1,‡, Xifang Chen(陈喜芳)1, Yougen Yi(易有根)3, Jianguo Zhang(张建国)5, and Pinghui Wu(吴平辉)6,§
1 Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China; 2 State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China; 3 College of Physics and Electronics, Central South University, Changsha 410083, China; 4 College of Science, Zhejiang University of Technology, Hangzhou 310023, China; 5 Department of Physics and Electronic Engineering, Jinzhong University, Jinzhong 030619, China; 6 Research Center for Photonic Technology, Key Laboratory of Information Functional Material for Fujian Higher Education, Quanzhou Normal University, Quanzhou 362000, China
Abstract 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.
(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11604311, 61705204, and 21506257), the Scientific Research Fund from Sichuan Provincial Science and Technology Department (Grant Nos. 2020YJ0137 and 2020YFG0467), the Undergraduate Innovation Fund by Southwest University of Science and Technology (Grant No. JZ20-027), the Fund by the School of Science of Southwest University of Science and Technology for the Innovation Fund Project (Grant No. LX2020010), and the Undergraduate Innovation and Entrepreneurship Training Program of Southwest University of Science and Technology (Grant No. S202010619073).
Corresponding Authors:
Zao Yi, Pinghui Wu
E-mail: yizaomy@swust.edu.cn;wph1021@163.com
Cite this article:
Zhiyou Li(李治友), Yingting Yi(易颖婷), Danyang Xu(徐丹阳), Hua Yang(杨华), Zao Yi(易早), Xifang Chen(陈喜芳), Yougen Yi(易有根), Jianguo Zhang(张建国), and Pinghui Wu(吴平辉) A multi-band and polarization-independent perfect absorber based on Dirac semimetals circles and semi-ellipses array 2021 Chin. Phys. B 30 098102
[1] Qi Y P, Zhang B H, Ding J H, Zhang T, Wang X X and Yi Z 2021 Chin. Phys. B30 024211 [2] Zhang Y B, Yi Z, Wang X Y, Chu P X, Yao W T, Zhou Z G, Cheng S B, Liu Z M, Wu P H, Pan M and Yi YG 2021 Physica E127 114526 [3] Jiang L Y, Yuan C, Li Z Y, Su J, Yi Z, Yao W T, Wu P H, Liu Z M, Cheng S B and Pan M 2021 Diam. Relat. Mater.111 108227 [4] Wang X X, Zhu J K, Xu Y Q, Qi Y P, Zhang L P, Yang H and Yi Z 2021 Chin. Phys. B30 024207 [5] Landy N I, Sajuyigbe S, Mock J J, Smith D R and Padilla W J 2008 Phys. Rev. Lett.100 207402 [6] Yi Z, Li J K, Lin J C, Qin F, Chen X F, Yao W T, Liu Z M, Cheng S B, Wu P H and Li H L 2020 Nanoscale12 23077 [7] Li J K, Chen X F, Yi Z, Yang H, Tang Y J, Yi Y, Yao W T, Wang J Q and Yi Y G 2020 Mater. Today Energy16 100390 [8] Yu P Q, Yang H, Chen X F, Yi Z, Yao W T, Chen J F, Yi Y G and Wu P H 2020 Renew. Energy158 227 [9] Zhao F, Chen X F, Yi Z, Qin F, Tang Y J, Yao W T, Zhou Z G and Yi Y G 2020 Solar Energy204 635 [10] Hao J M, Wang J, Liu X L, Padilla W J, Zhou L and Qiu M 2010 Appl. Phys. Lett.96 251104 [11] Yao, G, Ling F R, Yue J, Luo C Y, Ji J and Yao J Q 2016 Opt. Express24 1518 [12] Kildishev A V, Boltasseva A and Shalaev V M 2013 Science339 1232009 [13] Zhang Y B, Wu P H, Zhou Z G, Chen X F, Yi Z, Zhu J Y, Zhang T S and Jile H 2020 IEEE Access8 85154 [14] Qin F, Chen X F, Yi Z, Yao W T, Yang H, Tang Y J, Yi Y, Li H L and Yi YG 2020 Sol. Energy Mater. Sol. Cells211 110535 [15] Cen C L, Zhang Y B, Chen X F, Yang H, Yi Z, Yao W T, Tang Y J, Yi Y G, Wang J Q and Wu P H 2020 Physica E117 113840 [16] Lin B Q, Guo J X, Huang B G, Fang L B, Chu P and Liu X W 2018 Chin. Phys. B27 054204 [17] Khan M I and Tahir F A 2018 Chin. Phys. B27 014101 [18] Hou H S, Wang G M, Li H P, Guo W L, Li T J and Cai T 2017 Chin. Phys. B26 057701 [19] Young S M, Zaheer S, Teo J C Y, Kane C L, Mele E J and Rappe A M 2012 Phys. Rev. Lett.108 140405 [20] Wang Y Q, Yi Y T, Xu D Y, Yi Z, Li Z Y, Chen X F, Jile H, Zhang J G, Zeng L C and Li G F 2021 Physica E131 114750 [21] Zhang J X, Zhang L D and Xu W 2012 J. Phys. D: Appl. Phys.45 113001 [22] Wu Y F, Zhang L, Li C Z, Zhang Z S, Liu S, Liao Z M and Yu D P 2018 Adv. Mater.30 1707547 [23] Chen Z H, Chen H, Jile H, Xu D Y, Yi Z, Lei Y L, Chen X F, Zhou Z G, Cai S S and Li G F 2021 Diam. Relat. Mater.115 108374 [24] Chen H, Zhang H, Liu M, Zhao Y, Guo X and Zhang Y 2017 Opt. Mater. Express7 3397 [25] Timusk T, Carbotte J P, Homes C C, Basov D N and Sharapov S G 2013 Phys. Rev. B87 235121 [26] Chen H, Zhang H Y, Liu M D, Zhao Y K, Guo X H and Zhang Y P 2017 Opt. Mater. Express7 3397 [27] Chu P X, Chen J X, Xiong Z G and Yi Z 2020 Opt. Commun.476 126338 [28] Vasi B and Gaji R 2013 Appl. Phys. Lett.103 261111 [29] Hossain M.B, Mehedi I M, Moznuzzaman M, Abdulrazak L F and Hossain M D 2019 Results Phys.15 102719
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