激光与光电子学进展, 2018, 55 (1): 012401, 网络出版: 2018-09-10
基于石墨烯的表面等离激元带阻滤波器 下载: 1375次
Surface Plasmonic Polariton Band-Stop Filters Based on Graphene
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 optics at surfaces surface plasmonic polariton graphene band-stop filter refractive index sensor finite element method
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1100 nm/RIU,品质因数高达138,可用作高灵敏度的折射率传感器。
Abstract
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.
赵静, 王加贤, 邱伟彬, 邱平平, 任骏波, 林志立. 基于石墨烯的表面等离激元带阻滤波器[J]. 激光与光电子学进展, 2018, 55(1): 012401. Zhao Jing, Wang Jiaxian, Qiu Weibin, Qiu Pingping, Ren Junbo, Lin Zhili. Surface Plasmonic Polariton Band-Stop Filters Based on Graphene[J]. Laser & Optoelectronics Progress, 2018, 55(1): 012401.