Tunable Multiple Plasmon-Induced Transparencies Based on Asymmetrical Grapheme Nanoribbon Structures

Materials

Liu Yang¹  Gaige Zheng²  Jicheng Wang³  Zheng-Da Hu³  Chunyu Lu³  Shubin Yan⁴ 

[1] Technology, Nanjing 210044, China;;School of Physics and Optoelectronic Engineering, Nanjing University of Information Science &School of Science, Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Jiangnan University, Wuxi 214122, China;Science and Technology on Electronic Test and Measurement Laboratory, North University of China, No. 3 Xueyuan Road, Taiyuan 030051, China;

关键词: plasmon-induced transparency (PIT);    graphene nanoribbons (GNRs);    multiple peak;    graphene plasmonics;   

DOI  :  10.3390/ma10070699

来源: DOAJ

【 摘 要 】

We present plasmonic devices, consisting of periodic arrays of graphene nanoribbons (GNRs) and a graphene sheet waveguide, to achieve controllable plasmon-induced transparency (PIT) by numerical simulation. We analyze the bright and dark elements of the GNRs and graphene-sheet waveguide structure. Results show that applying the gate voltage can electrically tune the PIT spectrum. Adjusting the coupling distance and widths of GNRs directly results in a shift of transmission dips. In addition, increased angle of incidence causes the transmission to split into multiple PIT peaks. We also demonstrate that PIT devices based on graphene plasmonics may have promising applications as plasmonic sensors in nanophotonics.

【 授权许可】

Unknown