Electrically Tunable Terahertz Metamaterial Absorber Comprised Cu/Graphene Strips

被引：0
作者：
M. A. Baqir
S. A. Naqvi
机构：
[1] COMSATS University Islamabad,Department of Electrical and Computer Engineering
来源：
Plasmonics | 2020年 / 15卷
关键词：
Terahertz metamaterial; Tunable filter; Graphene; Narrow-band absorber;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This communication investigates the spectral features of metamaterial-based absorber operating in the terahertz frequency band. Metamaterial-based absorber is comprised of copper (Cu) and graphene strips loaded over a silicon dioxide (SiO2) glass substrate. The absorptivity of the proposed absorber is analyzed by varying the chemical potential of the graphene and the slant angle of Cu strips. The results demonstrate that absorption band can be tuned by varying the chemical potential of graphene and the slant angle of copper strip. Such an absorber would be useful for the terahertz filtering and sensing applications in integrated optics.
引用
收藏
页码：2205 / 2211
页数：6
相关论文
共 145 条
[1]  
Novoselov KS(2004)Electric field effect in atomically thin carbon films Science 306 666-669
[2]  
Novoselov KS(2005)Two-dimensional gas of massless Dirac fermions in graphene Nature 438 197-2000
[3]  
Geim AK(2017)Graphene-based slab waveguide for slow-light propagation and mode filtering J Electromagn Waves Appl 31 2055-2063
[4]  
Morozov SV(2018)Equivalent circuit model for the design of frequency-selective, terahertz-band, graphene-based metamaterial absorbers IET Microw Antenna Propag 9 1-5
[5]  
Jiang D(2012)Switching terahertz waves with gate-controlled active graphene metamaterials Nat Mater 11 936-839
[6]  
Katsnelson MI(2019)Graphene-over-graphite-based metamaterial structure as optical filter in the visible regime Optik 180 832-60
[7]  
Grigorieva IV(2012)Wave propagation control at the deep subwavelength scale in metamaterials Nat Phys 9 55-5608
[8]  
Dubonos SV(2013)Metamaterials beyond electromagnetism Rep Prog Phys 76 126501-1551
[9]  
Firsov AA(2019)Tunable plasmonic perfect absorber based on a multilayer graphene strip-grating structure J Electron Mater 48 5603-491
[10]  
Baqir MA(2017)Hyperbolic metamaterial-based UV absorber IEEE Photon Technol Lett 29 1548-156
12345678910