| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
|
|
|
|
Terahertz Perfect Absorber Based on Asymmetric Open-Loop Cross-Dipole Structure |
| Meng-Yao Yan , Bi-Jun Xu**, Zhi-Chao Sun , Zhen-Dong Wu , Bai-Rui Wu |
| School of Sciences, Zhejiang University of Science and Technology, Hangzhou 310023, China |
|
| Cite this article: |
|
Meng-Yao Yan , Bi-Jun Xu, Zhi-Chao Sun et al 2020 Chin. Phys. Lett. 37 067801 |
|
|
|
|
Abstract Equipped with multiple and unique features, a terahertz absorber exhibits great potential for use in the development of communication, military, and other fields where achieving perfect broadband absorption has always been a challenge. We present a metamaterial terahertz (THz) absorber comprising a cross-dipole patch, four symmetric square patches and an asymmetric open-loop patch with a good perfect absorption rate for TE and TM polarizations. The average absorption of more than 96% occurs in the frequency range from 2.4 THz to 3.8 THz, in which the absorptance peak can reach 99.9%, as indicated by simulated results. Our design has broad potential applications in THz couplers, as well as in fields like biology and security.
|
|
|
Received: 24 February 2020
Published: 26 May 2020
|
|
| PACS: |
78.67.Pt
|
(Multilayers; superlattices; photonic structures; metamaterials)
|
| |
42.25.Bs
|
(Wave propagation, transmission and absorption)
|
| |
42.70.-a
|
(Optical materials)
|
| |
78.20.Ci
|
(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
|
|
|
|
|
|
| [1] | Koenig S, Lopez-Diaz D, Antes J et al 2013 Nat. Photon. 7 977 |
| [2] | Kurt H, Citrin D 2005 Appl. Phys. Lett. 87 041108 |
| [3] | Watts C M, Liu X, Padilla W J 2012 Adv. Mater. 24 OP181 |
| [4] | Fan S, Li T, Zhou J et al 2017 AIP Adv. 7 115202 |
| [5] | Tao H, Landy N I, Bingham C M et al 2008 Opt. Express 16 7181 |
| [6] | Chen H T 2012 Opt. Express 20 7165 |
| [7] | Smith D R, Padilla W J, Vier D et al 2000 Phys. Rev. Lett. 84 4184 |
| [8] | Zhang B, Lv L, He T et al 2015 Appl. Phys. Lett. 107 093301 |
| [9] | Kapoor A, Singh G 2000 J. Lightwave Technol. 18 849 |
| [10] | Feng L, Xu Y L, Fegadolli W S et al 2013 Nat. Mater. 12 108 |
| [11] | Grady N K, Heyes J E, Chowdhury D R et al 2013 Science 340 1304 |
| [12] | Yachmenev A, Lavrukhin D, Glinskiy I et al 2019 Opt. Eng. 59 061608 |
| [13] | Li W, Coppens Z J, Besteiro L V et al 2015 Nat. Commun. 6 8379 |
| [14] | Cong L, Pitchappa P, Lee C et al 2017 Adv. Mater. 29 1700733 |
| [15] | Duan G, Schalch J, Zhao X et al 2018 Opt. Express 26 2242 |
| [16] | Landy N I, Sajuyigbe S, Mock J J et al 2008 Phys. Rev. Lett. 100 207402 |
| [17] | Liu N, Mesch M, Weiss T et al 2010 Nano Lett. 10 2342 |
| [18] | Wang M, Huang S Y, Hu R et al 2019 Chin. Phys. B 28 087804 |
| [19] | Low T, Avouris P 2014 ACS Nano 8 1086 |
| [20] | Tang X P, Yang Z Q, Shi Z J, Lan F 2016 Chin. Phys. Lett. 33 088401 |
| [21] | Wang B X, Wang G Z 2018 Plasmonics 13 123 |
| [22] | Islam M R, Kabir M F, Talha K M A et al 2020 Opt. Eng. 59 016113 |
| [23] | Paulish A, Gusachenko A, Morozov A et al 2019 Opt. Eng. 59 061612 |
| [24] | Fan C Z, Tian Y C, Ren P W et al 2019 Chin. Phys. B 28 076105 |
| [25] | Liu M, Yang Q, Rifat A A et al 2019 Adv. Opt. Mater. 7 1900736 |
| [26] | Duan G, Schalch J, Zhao X et al 2019 Sens. Actuators A 287 21 |
| [27] | Daraei O M, Goudarzi K, Bemani M 2020 Opt. Laser Technol. 122 105853 |
| [28] | Zhang H, Ling F, Wang H et al 2020 Opt. Commun. 463 125394 |
| [29] | Zhong Q, Wang T, Jiang X et al 2020 Opt. Commun. 458 124637 |
| [30] | Yan M Y, Sun Z C, Wu B R et al 2020 Front. Phys. 8 46 |
| [31] | Yang P, Qin J, Schalch J, Xu J, Han T C et al 2019 Acta Phys. Sin. 68 087802 (in Chinese) |
| [32] | Soheilifar, M R 2019 Optik 182 702 |
| [33] | Hao S B, Zhang L Z, Ma Y Y, Chen M Y et al 2019 Chin. Phys. Lett. 36 124205 |
| [34] | Wang D T, Wang X C, Zhang X, Yuan H R et al 2020 Chin. Phys. Lett. 37 045201 |
| [35] | Li S H, Li J S 2019 Chin. Phys. B 28 094210 |
| [36] | Xie Y M, Liu C Y, Ding Z J et al 2016 Chin. Phys. Lett. 33 094208 |
| [37] | Zhao J, Zhang J, Qin C et al 2016 Chin. Phys. Lett. 33 027801 |
| [38] | Wang C F, Li Q S, Wang J S et al 2016 Chin. Phys. Lett. 33 076802 |
| [39] | Wang L, Song W, Hu W, Li G, Luo X et al 2019 Chin. Phys. B 28 018503 |
| [40] | Meng X Q, Chen S L, Fang Y Z, Kou J L 2019 Chin. Phys. B 28 078101 |
| [41] | Wang W M, Zhang L L, Li Y T, Sheng Z M, Zhang J 2018 Acta Phys. Sin. 67 124202 (in Chinese) |
| [42] | Liu C, Ooi Y K, Islam S, Xing H, Jena D and Zhang J 2018 Appl. Phys. Lett. 112 011101 |
| [43] | Lu X H, Jing C B, Wang L W et al 2019 Chin. Phys. Lett. 36 098501 |
| [44] | Cheng X T and Liang X G 2017 Chin. Phys. B 26 120505 |
| [45] | Xia G, Kou W, Yang L and Du Y C 2017 Chin. Phys. B 26 104403 |
| [46] | Jiang S L, Li X F, Su R F, Jia X Q et al 2017 Chin. Phys. Lett. 34 090701 |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
