物理学报2012，Vol.61Issue(6)：460-465,6.
各向异性特异材料波导中表面等离子体的共振性质
Resonance properties of surface plasmon in the anisotropic metamaterial waveguide
摘要
Abstract
The resonance properties of surface plasmon in the AMM/dielectric/AMM waveguide are theoretically studied by using the finitedifference time-domain technique,where the claddings are anisotropic metamaterial（AMM）.From the dispersion relation,it is found that the AMM/dielectric/AMM waveguide supports TE polarized surface plasmon if AMM is always-cutoff with negative permeability. The wavelength of the surface plasmon becomes shorter when both the thickness of the dielectric core and the magnetic plasma frequency of AMM decrease.For an AMM/dielectric/AMM waveguide with a finite length,a subwavelength plasmon microcavity can be formed by Fabry-Perot resonance caused by the reflection of the guided mode at the entrance and the exit surfaces.At the resonant frequency,the electric field is maximized in the center,the magnetic field is maximized at the dielectric core entrance and exit,and the electromagnetic energy is strongly concentrated around the dielectric core.Such electromagnetic properties will have potential applications in the tunable subwavelength microcavity with strongly localized field and in the cavity quantum electrodynamics.关键词
特异材料波导/各向异性/表面等离子体/Fabry-Perot共振Key words
metamaterial waveguide/anisotropic/surface plasmon/Fabry-Perot resonance分类
数理科学引用本文复制引用
张利伟,赵玉环,王勤,方恺,李卫彬,乔文涛..各向异性特异材料波导中表面等离子体的共振性质[J].物理学报,2012,61(6):460-465,6.基金项目
国家自然科学基金 （）
中国博士后科学基金 （）
河南省教育厅自然科学基金 （）
河南理工大学青年骨干教师基金 （）
河南理工大学博士基金（批准号：B2009-88）资助的课题 （）
