基于石墨烯的表面等离激元带阻滤波器  

Surface Plasmonic Polariton Band-Stop Filters Based on Graphene

作　　者：赵静 王加贤 邱伟彬[2] 邱平平 任骏波 林志立[2] 

机构地区：[1]厦门工学院电子信息与电气工程学院,福建厦门361021 [2]华侨大学信息科学与工程学院,福建厦门361021

出　　处：《激光与光电子学进展》2018年第1期368-372,共5页Laser & Optoelectronics Progress

基　　金：福建省杰出青年科学基金(2015J06015);华侨大学中青年教师科技研究促进计划(ZQN-YX203)

摘　　要：提出了一种基于石墨烯的中红外波段表面等离激元带阻滤波器结构。该结构由单层石墨烯周期性排列组成。数值仿真结果表明,石墨烯纳米带化学势的轻微改变会导致谐振波长的移动。此结构在中红外光谱范围内的敏感度达1100nm/RIU,品质因数高达138,可用作高灵敏度的折射率传感器。A graphene-based band-stop filter structure for the surface plasmonic polariton in the mid-infrared wave band is proposed, which consists of a periodic array of single-layered graphene. The numerical simulation results show that the slight variation of the chemical potential of the graphene nanoribbon results in the shift of resonance wavelength. This structure possesses a sensitivity of 1100 nm/RIU and a figure of merit of 138 in the mid-infrared spectrum range, which can be used as a highly sensitive refractive index sensor.

关 键 词：表面光学 表面等离激元 石墨烯 带阻滤波器 折射率传感器 有限元方法 

分 类 号：O436[机械工程—光学工程]