含一缺陷层一维磁流体光子晶体局域模磁场调控特性研究  

The Research on the Characteristics of Magnetic Field Regulation in One-dimensional Magnetic Fluid Photonic Crystal Localized Mode with a Defect Layer

作　　者：郝丽丽[1] 谢应茂[1,2] 

机构地区：[1]赣南师范学院物理与电子信息学院,江西赣州341000 [2]赣南师范学院光电子材料与技术研究所,江西赣州341000

出　　处：《赣南师范学院学报》2013年第6期21-24,共4页Journal of Gannan Teachers' College(Social Science(2))

基　　金：江西省教育厅科技项目(GJJ13660);江西省研究生创新专项资金项目(YC2013-S262)

摘　　要：基于磁流体的折射率磁场调控特性,利用传输矩阵法数值模拟了TiO2和纳米磁流体(水基Fe3O4)作为基元材料的一维光子晶体局域模的磁场调控特性.结果表明:具有(AB)NBB(AB)NA结构排列(N为正整数)的一维磁流体光子晶体的局域模波长会随着外加磁场强度的增大向短波方向移动,且最大调控量与周期数无关,折射率n c一定时,局域模波长随着介质层厚度的增大向长波方向移动;局域模的品质因子随光子晶体的周期数、介质层厚度的增大而增大.当光子晶体周期数一定时,局域模波长的调控量将随着介质层厚度的增大而增大.Based on the characteristics of magnetic field regulation for the index of refraction of nanoparticle magnetic fluid, the characteristics of magnetic field regulation for one-dimensional photonic crystals localized modes utilizing TiO2 and nanoparticle magnet-ic fluid as primitive materials is numerically simulated by means of transfer matrix method. The results indicate that the wavelength of localized mode moves to short-wave with the increasing of magnetic filed intensity, the maximum variation of the localized mode wave- length is not relevant to the photonic crystal periodicity; The localized mode wavelength moves to long-wave with the increasing of the thickness of dielectric layer when the refractive index is constant; The quality factor of localized mode increases with the increasing of the photonic crystal periodicity and dielectric layer thickness ; The variation of localized mode wavelength increases with the increasing of dielectric layer thickness.

关 键 词：光子晶体 纳米磁流体 传输矩阵法 局域模 品质因子 

分 类 号：TN203[电子电信—物理电子学]