Gao Enduo, Liu Zhimin, Li Hongjian, Xu Hui, Zhang Zhenbin, Zhang Xiao, Luo Xin, Xiong Cuixiu, Liu Chao, Zhang Baihui, Zhou Fengqi
J Opt Soc Am A Opt Image Sci Vis. 2019 Aug 1;36(8):1306-1311. doi: 10.1364/JOSAA.36.001306.
An H-type-graphene-based slow-light metamaterial is proposed to produce a dual plasmon-induced transparency phenomenon, which can be effectively modulated by Fermi level, carrier mobility of graphene, and the medium environment. The data calculated by coupled mode theory and results of numerical simulation show prominent agreement. In addition, both the simplicity and continuity of the units of graphene-based metamaterial are extraordinary advantages. Furthermore, the slow-light characteristics of the proposed structure show that the group refractive index is as high as 237, which is more competitive than some other slow-light devices.
提出了一种基于H型石墨烯的慢光超材料来产生双等离子体诱导透明现象，该现象可通过费米能级、石墨烯的载流子迁移率和介质环境进行有效调制。耦合模理论计算的数据与数值模拟结果显示出显著的一致性。此外，基于石墨烯的超材料单元的简单性和连续性都是非常突出的优点。此外，所提出结构的慢光特性表明，群折射率高达237，比其他一些慢光器件更具竞争力。
