典型文献
Multi-frequency switch and excellent slow light based on tunable triple plasmon-induced transparency in bilayer graphene metamaterial
文献摘要：
We propose a novel bilayer graphene terahertz metamaterial composed of double graphene ribbons and double graphene rings to excite a dynamically adjustable triple plasma-induced transparency(PIT)effect.The coupled mode theory(CMT)is used to explain the PIT phenomenon,and the results of the CMT and the finite-difference time-domain simulation show high matching degree.By adjusting the Fermi levels of graphene,we have realized a penta-frequency asynchronous optical switch.The performance of this switch,which is mainly manifested in the maximum modulation depth(MD=99.97％)and the minimum insertion loss(IL=0.33 dB),is excellent.In addition,we have studied the slow-light effect of this triple-PIT and found that when the Fermi level of graphene reaches 1.2 eV,the time delay can reach 0.848 ps.Therefore,this metamaterial provides a foundation for the research of multi-frequency optical switches and excellent slow-light devices in the terahertz band.
文献关键词：
中图分类号：
作者姓名：
Xianwen Zhou;Yiping Xu;Yuhui Li;Shubo Cheng;Zao Yi;Guohui Xiao;Ziyi Wang;Zhanyu Chen
作者机构：
School of Physics and Optoelectronic Engineering,Yangtze University,Jingzhou 434023,China;Joint Laboratory for Extreme Conditions Matter Properties,Southwest University of Science and Technology,Mianyang 621010,China;Jiangxi Province Key Laboratory of Optoelectronics and Communications,Jiangxi Science and Technology Normal University,Nanchang 330038,China
文献出处：
引用格式：
[1]Xianwen Zhou;Yiping Xu;Yuhui Li;Shubo Cheng;Zao Yi;Guohui Xiao;Ziyi Wang;Zhanyu Chen-.Multi-frequency switch and excellent slow light based on tunable triple plasmon-induced transparency in bilayer graphene metamaterial)[J].理论物理,2022(11):170-179
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Multi,frequency,excellent,slow,light,tunable,triple,plasmon,induced,transparency,bilayer,graphene,metamaterial,We,propose,novel,terahertz,composed,double,ribbons,rings,excite,dynamically,adjustable,plasma,PIT,effect,coupled,mode,theory,CMT,used,explain,phenomenon,results,finite,difference,domain,simulation,show,high,matching,degree,By,adjusting,Fermi,levels,we,have,realized,penta,asynchronous,optical,performance,this,which,mainly,manifested,maximum,modulation,depth,MD,minimum,insertion,loss,dB,In,addition,studied,that,when,reaches,eV,delay,can,ps,Therefore,provides,foundation,research,multi,switches,devices,band
AB值：
0.581841
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