Multi-mode surface plasmon resonance absorber based on dart-type single-layer grapheme

doi:10.1039/d2ra00611a

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	Multi-mode surface plasmon resonance absorber based on dart-type single-layer grapheme
	Chen, Hao 2; Chen, Zihao 2; Yang, Hua 3; Wen, Lianghua 4; Yi, Zao 2; Zhou, Zigang 2; Dai, Bo 2; Zhang, Jianguo 5; Wu, Xianwen 1; Wu, Pinghui 6
刊名	RSC Advances
	2022-03-09
卷号	12 期号:13 页码:7821-7829
关键词	Efficiency Polarization Refractive index Silica Surface plasmon resonance Absorption efficiency High sensitivity Multimodes Polarization independence Simple++ Single layer Spacer layer Surface-plasmon resonance Top layers Tunabilities
DOI	10.1039/d2ra00611a
英文摘要	In this paper, a multi-mode surface plasmon resonance absorber based on dart-type single-layer graphene is proposed, which has the advantages of polarization independence, tunability, high sensitivity, high figure of merit, etc. The device consists of a top layer dart-like patterned single-layer graphene array, a thicker silicon dioxide spacer layer and a metal reflector layer, and has simple structural characteristics. The numerical results show that the device achieves the perfect polarization-independent absorption at the resonance wavelengths of λI = 3369.55 nm, λII = 3508.35 nm, λIII = 3689.09 nm and λIV = 4257.72 nm, with the absorption efficiencies of 99.78%, 99.40%, 99.04% and 99.91%, respectively. The absorption effect of the absorber can be effectively regulated and controlled by adjusting the numerical values such as the geometric parameters and the structural period p of the single-layer graphene array. In addition, by controlling the chemical potential and the relaxation time of the graphene layer, the resonant wavelength and the absorption efficiency of the mode can be dynamically tuned. And can keep high absorption in a wide incident angle range of 0° to 50°. At last, we exposed the structure to different environmental refractive indices, and obtained the corresponding maximum sensitivities in four resonance modes, which are SI = 635.75 nm RIU-1, SII = 695.13 nm RIU-1, SIII = 775.38 nm RIU-1and SIV = 839.39 nm RIU-1. Maximum figure of merit are 54.03 RIU-1, 51.49 RIU-1, 43.56 RIU-1, and 52.14 RIU-1, respectively. Therefore, this study has provided a new inspiration for the design of the graphene-based tunable multi-band perfect metamaterial absorber, which can be applied to the fields such as photodetectors and chemical sensors. © 2022 Royal Society of Chemistry. All rights reserved.
WOS研究方向	Chemistry
语种	英语
出版者	Royal Society of Chemistry
WOS记录号	WOS:000766251000001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/157852]
专题	理学院
作者单位	1.School of Chemistry and Chemical Engineering, Jishou University, Jishou; 416000, China; 2.School of Science, State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang; 621010, China; 3.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 4.Division of Intelligent Manufactuning, Yibin University, Yibin; 644600, China; 5.Department of Physics, Jinzhong University, Jinzhong; 030619, China; 6.Fujian Provincial Key Laboratory for Advanced Micro-nano Photonics Technology and Devices, Quanzhou Normal University, Quanzhou; 362000, China
推荐引用方式 GB/T 7714	Chen, Hao,Chen, Zihao,Yang, Hua,et al. Multi-mode surface plasmon resonance absorber based on dart-type single-layer grapheme[J]. RSC Advances,2022,12(13):7821-7829.
APA	Chen, Hao.,Chen, Zihao.,Yang, Hua.,Wen, Lianghua.,Yi, Zao.,...&Wu, Pinghui.(2022).Multi-mode surface plasmon resonance absorber based on dart-type single-layer grapheme.RSC Advances,12(13),7821-7829.
MLA	Chen, Hao,et al."Multi-mode surface plasmon resonance absorber based on dart-type single-layer grapheme".RSC Advances 12.13(2022):7821-7829.