单层石墨烯矩形纳米片等离子体共振频率的解析判定
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摘要：
利用经典电路演绎,对单层石墨烯矩形纳米片等离子体共振频率进行了研究.将单层结构化石墨烯等效为由电感和电容共同构成的集总电路.基于准静态近似,分析得到了单层结构化石墨烯等离子体共振频率的解析判定公式.结果表明,通过调节周围环境介电常数,石墨烯自身几何形状及其费米能量,石墨烯等离子体的共振特性能够得到有效的调控.此外,借助于数值仿真实验,上述解析判定公式的可靠性得到了验证.这种电路描述方法为石墨烯等离子体微结构器件共振频率的确定提供了指导,能够进一步降低复杂构型石墨烯等离子体的设计难度.
In this paper,the resonance frequency of monolayer graphene plasmon has been studied by classical circuit deduction.We consider the monolayer structured graphene equivalent to a lumped circuit model with a inductance and capacitance.Based on the quasi-static approximation,the analytic determination formula of the plasmon resonance frequency of monolayer structured graphene was obtained.The results show that the resonant properties of graphene plasmon can be effectively controlled by adjusting the dielectric constant of the surrounding environment,the geometry of graphene itself and the Fermi energy.In addition,by means of numerical simulation experiments,the reliability of the above analytical determination formula has been verified.This method of circuit description provides guidance for the determination of the resonance frequency of graphene plasmon microstructure devices,and can further simplify the design difficulty of graphene plasmons with complex configurations.
作者：
路海 李丽君 张现周 张军 夏世强 黄蒙 沈克胜
Lu Hai;Li Lijun;Zhang Xianzhou;Zhang Jun;Xia Shiqiang;Huang Meng;Shen Kesheng(College of Physics and Electronic Engineering,Henan Normal University,Xinxiang 453007,Chin)
机构地区：
betway官方app 物理与材料科学学院
出处:
《betway官方app 学报：自然科学版》 CAS 北大核心 2018年第4期49-54,共6页
基金:
国家自然科学基金(11404102) 河南省重点科技攻关计划项目(152102210079) 河南省教育厅科学技术研究重点项目(14A140002) 先进微结构材料教育部重点实验室开放课题(5201029160008)
关键词:
石墨烯 等离子体共振 电导率
graphene plasmonic resonance conductivity
分类号:
O436.1 [机械工程—光学工程]
