纳米金属光栅对石墨烯滤波影响的仿真分析  

Simulation Analysis on Influence of Metal Nanograting on Graphene Filtering

作　　者：孙斌[1] 杨友昌[1] 万猛[1] 谢飞凤 

机构地区：[1]遵义师范学院物理与机电工程学院,贵州遵义563006

出　　处：《激光与光电子学进展》2017年第10期428-433,共6页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(11265017;11464052);贵州省科学基金(黔科合J字[2015]2149号);遵义师范学院博士基金(40300326);省市科技合作专项资金(省市科合[2015]55号)

摘　　要：采用有限元法,研究了基于石墨烯/金属混合纳米光栅的太赫兹(THz)滤波器。混合光栅可构成纳米腔阵列,利用腔中磁场法布里-珀罗谐振效应,制作了THz滤波器。该滤波器对波长的选择不易受外界环境的影响,而且其滤波波长可动态调控;另外,可通过增加石墨烯的层数增强其滤波能力。A terahertz （THz） filter based on graphene/metal hybrid nanogratings is studied with the finite element method. Nanoeavity arrays can be formed by the hybrid gratings. A THz filter is prepared by using the magnetic Fabray-Perot resonance effect in the nanocavity. The wavelength choice performance of this filter is unaffected by the external environments and the filtering wavelength can also be dynamically controlled. In addition, the filtering performance of this filter can be enhanced via the increase of the graphene layer number.

关 键 词：表面光学 表面等离子体激元 波长滤波器件 太赫兹频谱 电光材料 纳米结构 

分 类 号：O469[理学—凝聚态物理]