Broadband, wide-incident-angle, and polarization-insensitive high-efficiency absorption of monolayer graphene with nearly 100% modulation depth at communication wavelength

doi:10.1016/j.rinp.2022.105833

CORC > 兰州理工大学 > 兰州理工大学 > 理学院

	Broadband, wide-incident-angle, and polarization-insensitive high-efficiency absorption of monolayer graphene with nearly 100% modulation depth at communication wavelength
	Chen, Jing 2; Zhang, Mingxi 2; Gu, Ping 2; Yan, Zhendong 3; Tang, Chaojun 4; Lv, Bin 4; Wang, Xiangxian 5; Yi, Zao 6; Zhu, Mingwei 1,7
刊名	RESULTS IN PHYSICS
	2022-09-01
卷号	40
关键词	Monolayer graphene Light absorption enhancement Metamaterials Magnetic resonance
ISSN号	2211-3797
DOI	10.1016/j.rinp.2022.105833
英文摘要	We theoretically study how to greatly improve the near-infrared light absorption of monolayer graphene through the excitation of magnetic resonance in metamaterials. The absorption maximum of monolayer graphene is able to reach up to about 77% at the communication wavelength of 1550 nm. The conventionally defined absorption bandwidth, i.e., the full width at half maximum (FWHM), is nearly 160 nm. Thanks to the localization nature of magnetic resonance, the broadband high-efficiency absorption of monolayer graphene is insensitive to the incident angle and the light polarization. The absorption maximum, the absorption bandwidth, and the reso-nance position all have almost no change, when the incident angle is increased to even 60 degrees for both p and s polarizations. By applying an external bias voltage to change Fermi energy, the absorption in graphene can be completely modulated, with a nearly 100% modulation depth. Furthermore, the graphene absorption has an abrupt and large change around the interband transition, which exhibits an electrical switching property. Our work may find potential applications in graphene-based optoelectronic devices such as photodetector and modulator.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000839324500008
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159863]
专题	理学院
作者单位	1.Nanjing Univ, Coll Engn & Appl Sci, Nanjing 210093, Peoples R China 2.Nanjing Univ Posts & Telecommun, Coll Elect & Opt Engn, Nanjing 210023, Peoples R China; 3.Nanjing Forestry Univ, Coll Sci, Nanjing 210037, Peoples R China; 4.Zhejiang Univ Technol, Coll Sci, Hangzhou 310023, Peoples R China; 5.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China; 6.Southwest Univ Sci & Technol, Joint Lab Extreme Condit Matter Properties, Mianyang 621010, Sichuan, Peoples R China; 7.Nanjing Univ, Jiangsu Key Lab Artificial Funct Mat, Nanjing 210093, Peoples R China;
推荐引用方式 GB/T 7714	Chen, Jing,Zhang, Mingxi,Gu, Ping,et al. Broadband, wide-incident-angle, and polarization-insensitive high-efficiency absorption of monolayer graphene with nearly 100% modulation depth at communication wavelength[J]. RESULTS IN PHYSICS,2022,40.
APA	Chen, Jing.,Zhang, Mingxi.,Gu, Ping.,Yan, Zhendong.,Tang, Chaojun.,...&Zhu, Mingwei.(2022).Broadband, wide-incident-angle, and polarization-insensitive high-efficiency absorption of monolayer graphene with nearly 100% modulation depth at communication wavelength.RESULTS IN PHYSICS,40.
MLA	Chen, Jing,et al."Broadband, wide-incident-angle, and polarization-insensitive high-efficiency absorption of monolayer graphene with nearly 100% modulation depth at communication wavelength".RESULTS IN PHYSICS 40(2022).