Perfect Absorption of Fan-Shaped Graphene Absorbers with Good Adjustability in the Mid-Infrared

doi:10.3390/coatings12070990

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	Perfect Absorption of Fan-Shaped Graphene Absorbers with Good Adjustability in the Mid-Infrared
	Ren, Hongyu 2; Shangguan, Qianyi 2; Song, Zijun 2,3; Zhao, Yong 3,4; Yi, Zao 2; Ma, Guolu 2; Zhang, Jianguo 5; Yang, Hua 1; Wang, Shifa 6; Wu, Pinghui 7
刊名	COATINGS
	2022-07-01
卷号	12 期号:7
关键词	graphene metamaterials surface plasmon resonance mid-infrared tunable finite-different time-domain
DOI	10.3390/coatings12070990
英文摘要	This paper presents a graphene metamaterial absorber based on impedance matching. A finite difference in time domain (FDTD) method is used to achieve a theoretically perfect absorption in the mid-infrared band. A basis is created for the multiband stable high absorption of graphene in the mid-infrared. The designed graphene absorber is composed of graphene, a dielectric layer, a gold plane, and a silicon substrate, separately. The incident source of mid-infrared can be utilized to stimulate multiband resonance absorption peaks from 2.55 to 4.15 mu m. The simulation results show that the absorber has three perfect resonance peaks exceeding 99% at lambda(1) = 2.67 mu m, lambda(2) = 2.87 mu m, and lambda(3) = 3.68 mu m, which achieve an absorption efficiency of 99.67%, 99.61%, and 99.40%, respectively. Furthermore, the absorber maintains an excellent performance with a wide incident angle range of 0 degrees-45 degrees, and it also keeps the insensitive characteristic to transverse electric wave (TE) and transverse magnetic wave (TM). The results above indicate that our perfect graphene absorber, with its tunability and wide adaptability, has many potential applications in the fields of biosensing, photodetection, and photocell.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	MDPI
WOS记录号	WOS:000833823300001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159479]
专题	理学院
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Southwest Univ Sci & Technol, Joint Lab Extreme Condit Matter Properties, Key Lab Mfg Proc Testing Technol, Minist Educ, Mianyang 621010, Sichuan, Peoples R China; 3.China Aviat Dev Sichuan Gas Turbine Res Inst, Mianyang 621000, Sichuan, Peoples R China; 4.Key Lab Aeroengine High Altitude Simulat Technol, Mianyang 621000, Sichuan, Peoples R China; 5.Jinzhong Univ, Dept Phys, Jinzhong 030619, Peoples R China; 6.Chongqing Three Gorges Univ, Sch Elect & Informat Engn, Chongqing 404000, Peoples R China; 7.Quanzhou Normal Univ, Fujian Prov Key Lab Adv Micronano Photon Technol, Quanzhou 362000, Peoples R China
推荐引用方式 GB/T 7714	Ren, Hongyu,Shangguan, Qianyi,Song, Zijun,et al. Perfect Absorption of Fan-Shaped Graphene Absorbers with Good Adjustability in the Mid-Infrared[J]. COATINGS,2022,12(7).
APA	Ren, Hongyu.,Shangguan, Qianyi.,Song, Zijun.,Zhao, Yong.,Yi, Zao.,...&Wu, Pinghui.(2022).Perfect Absorption of Fan-Shaped Graphene Absorbers with Good Adjustability in the Mid-Infrared.COATINGS,12(7).
MLA	Ren, Hongyu,et al."Perfect Absorption of Fan-Shaped Graphene Absorbers with Good Adjustability in the Mid-Infrared".COATINGS 12.7(2022).