激光与光电子学进展, 2017, 54 (10): 102401, 网络出版: 2017-10-09
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
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 optics at surfaces surface plasmon polaritons wavelength filtering devices terahertz frequency SPPectrum electro-optical materials nanostructures
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。
Abstract
A terahertz (THz) filter based on graphene/metal hybrid nanogratings is studied with the finite element method. Nanocavity 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.
孙斌, 杨友昌, 万猛, 谢飞凤. 纳米金属光栅对石墨烯滤波影响的仿真分析[J]. 激光与光电子学进展, 2017, 54(10): 102401. Sun Bin, Yang Youchang, Wan Meng, Xie Feifeng. Simulation Analysis on Influence of Metal Nanograting on Graphene Filtering[J]. Laser & Optoelectronics Progress, 2017, 54(10): 102401.