石墨烯
材料科学
太赫兹辐射
化学气相沉积
吸收(声学)
丝带
基质(水族馆)
光电子学
薄板电阻
石墨烯纳米带
电介质
多波段设备
吸收带
光学
复合材料
纳米技术
图层(电子)
地质学
天线(收音机)
物理
计算机科学
海洋学
电信
作者
Rui Xing,Shuisheng Jian
标识
DOI:10.1016/j.optlastec.2017.10.003
摘要
A dual-band graphene absorber is proposed and investigated in this paper. The absorber consists of the gold substrate, the graphene sheet sandwiched by dielectric layers and the array of graphene ribbon placed on the top. The two absorption peaks of the dual-band are 99.8% at 4.95 THz and 99.6% at 9.2 THz, respectively. Due to the characteristic of tunable surface conductivity of graphene, the absorption can be controlled by adjusting the chemical potential of graphene. We also investigate the dependence of the absorption curve of the proposed absorber on the structure parameters. In addition, the structure of the absorber is very simple and it can be manufactured by chemical vapor deposition (CVD).
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