Investigation of plasmon-induced transparency and reflection in patterned graphene metamaterial

被引:12
|
作者
Liu, Zhimin [1 ,2 ]
Gao, Enduo [1 ]
Li, Hongjian [3 ]
Xu, Hui [3 ]
Zhang, Zhenbin [1 ]
Zhang, Xiao [1 ]
Luo, Xin [1 ]
Zhou, Fengqi [1 ]
机构
[1] East China Jiaotong Univ, Sch Sci, Nanchang 330013, Jiangxi, Peoples R China
[2] Ohio State Univ, Dept Mat Sci & Engn, 2041 Coll Rd, Columbus, OH 43210 USA
[3] Cent S Univ, Sch Phys & Elect, Changsha 410083, Hunan, Peoples R China
基金
中国国家自然科学基金;
关键词
MOLYBDENUM-DISULFIDE; BAND ABSORPTION; SLOW-LIGHT;
D O I
10.1063/1.5113669
中图分类号
O59 [应用物理学];
学科分类号
摘要
Plasmon-induced transparency (PIT) and plasmon-induced reflectance (PIR) are explored in a patterned graphene metamaterial using finite-difference time-domain numerical simulations and coupled-mode-theory calculations, and both PIT and PIR phenomena can be tailored dynamically by adjusting the Fermi level of graphene. Surprisingly, the group index of the proposed structure can be increased abruptly to 630, indicating ultraslow light can be achieved. Furthermore, the reflectance of the PIR can reach 70%. Therefore, the proposed structure provides a solid foundation for the realization of excellent slow-light devices, reflectors, and modulators.
引用
收藏
页数:5
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