Plasmonic Absorption Enhancement in Elliptical Graphene Arrays

被引:49
作者
Chen, Jiajia [1 ,2 ]
Zeng, Yu [1 ,2 ]
Xu, Xibin [3 ]
Chen, Xifang [1 ,2 ]
Zhou, Zigang [1 ,2 ]
Shi, Pengcheng [1 ,2 ]
Yi, Zao [1 ,2 ]
Ye, Xin [3 ]
Xiao, Shuyuan [4 ]
Yi, Yougen [5 ]
机构
[1] Southwest Univ Sci & Technol, Sch Sci, Mianyang 621010, Peoples R China
[2] Southwest Univ Sci & Technol, Joint Lab Extreme Condit Matter Properties, Mianyang 621010, Peoples R China
[3] China Acad Engn Phys, Res Ctr Laser Fus, Mianyang 621900, Peoples R China
[4] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China
[5] Cent South Univ, Coll Phys & Elect, Changsha 410083, Hunan, Peoples R China
基金
中国国家自然科学基金;
关键词
graphene surface plasmon; metamaterials; absorption enhancement; FDTD method; TERAHERTZ; MODULATION; ABSORBER;
D O I
10.3390/nano8030175
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In this paper, we come up with a wavelength tunable absorber which is made up of periodically elliptical graphene arrays in the far-infrared and terahertz regions. Through simulation, we find that we can increase the length of long axis of the ellipse, raise the incidence angles of TM- and TE-polarization (TM- and TE-polarization indicate the direction of the incident electric field along the direction of the x and the y axis, respectively.) within certain limits, and increase the chemical potential of graphene, so as to enhance the absorption of light in the elliptical graphene arrays. We also compare the absorption spectra of the original structure and the complementary structure, and find that the absorption of the original structure is higher than that of the complementary structure. In the end, we study the changes in the absorption rate of the double layer structure of the elliptical array with the increase in the thickness of SiO2. The elliptical array structure can be applied to tunable spectral detectors, filters and sensors at far-infrared and terahertz wavelengths.
引用
收藏
页数:8
相关论文
共 23 条
  • [1] A perfect absorber made of a graphene micro-ribbon metamaterial
    Alaee, Rasoul
    Farhat, Mohamed
    Rockstuhl, Carsten
    Lederer, Falk
    [J]. OPTICS EXPRESS, 2012, 20 (27): : 28017 - 28024
  • [2] Alkaline anion exchange membranes based on KOH-treated multilayer graphene oxide
    Bayer, Thomas
    Cunning, Benjamin V.
    Selyanchyn, Roman
    Daio, Takeshi
    Nishihara, Masamichi
    Fujikawa, Shigenori
    Sasaki, Kazunari
    Lyth, Stephen M.
    [J]. JOURNAL OF MEMBRANE SCIENCE, 2016, 508 : 51 - 61
  • [3] Atomically Thin Surface Cloak Using Graphene Monolayers
    Chen, Pai-Yen
    Alu, Andrea
    [J]. ACS NANO, 2011, 5 (07) : 5855 - 5863
  • [4] Tunable THz absorption in graphene-based heterostructures
    Deng, Xin-Hua
    Liu, Jiang-Tao
    Yuan, Jiren
    Wang, Tong-Biao
    Liu, Nian-Hua
    [J]. OPTICS EXPRESS, 2014, 22 (24): : 30177 - 30183
  • [5] Active Tunable Absorption Enhancement with Graphene Nanodisk Arrays
    Fang, Zheyu
    Wang, Yumin
    Schather, Andrea E.
    Liu, Zheng
    Ajayan, Pulickel M.
    Javier Garcia de Abajo, F.
    Nordlander, Peter
    Zhu, Xing
    Halas, Naomi J.
    [J]. NANO LETTERS, 2014, 14 (01) : 299 - 304
  • [6] The rise of graphene
    Geim, A. K.
    Novoselov, K. S.
    [J]. NATURE MATERIALS, 2007, 6 (03) : 183 - 191
  • [7] Dyadic Green's functions and guided surface waves for a surface conductivity model of graphene
    Hanson, George W.
    [J]. JOURNAL OF APPLIED PHYSICS, 2008, 103 (06)
  • [8] Quasi-transverse electromagnetic modes supported by a graphene parallel-plate waveguide
    Hanson, George W.
    [J]. JOURNAL OF APPLIED PHYSICS, 2008, 104 (08)
  • [9] Controllable preparation of helical carbon nanofibers by CCVD method and their characterization
    Jin, Yongzhong
    Ren, Jiao
    Chen, Jian
    Dai, Zuyang
    Li, Binghong
    Zhou, Xuesong
    [J]. MATERIALS RESEARCH EXPRESS, 2018, 5 (01):
  • [10] Plasmonic absorption enhancement in periodic cross-shaped graphene arrays
    Ke, Shaolin
    Wang, Bing
    Huang, He
    Long, Hua
    Wang, Kai
    Lu, Peixiang
    [J]. OPTICS EXPRESS, 2015, 23 (07): : 8888 - 8900