介质环型三重晶格光子晶体的带隙  

Band Gap of Triple Lattice Photonic Crystals with Dielectric Ring Shape

作　　者：刘紫雁 唐吉玉[1] 刘娟[1] 陈彦[1] 董贵仁 何右青 

机构地区：[1]华南师范大学物理与电信工程学院,广东广州510006

出　　处：《激光与光电子学进展》2017年第11期331-335,共5页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(61271127)

摘　　要：提出一种介质环型三重晶格光子晶体结构,并研究了其完全带隙。利用Rsoft软件研究了各参数对完全带隙的影响规律,进而优化了介质环型结构。结果表明,随着介质环介电常数的增大,光子晶体完全带隙先增大后减小;随着介质环内径和外径的比值增大,完全带隙先增大后减小。当介质环的介电常数为14.71,内径和外径的比值为0.42时,获得的最大完全带隙为0.168。One triple lattice photonic crystal with a dielectric ring shape is proposed and its complete band gap is studied. By using the Rsoft software, the influence rules of each parameter on the complete band gap are studied. On this basis, the dielectric ring shaped structure is optimized. The results show that, with the increase of the dielectric constant of the dielectric ring, the complete band gap of the photonic crystal first increases and then decreases. With the increase of the ratio of inner diameter to outer diameter of the dielectric ring, the complete band gap first increases and then decreases. When the dielectric constant of the dielectric ring is 14.71 and the ratio of inner diameter to outer diameter is 0.42, the maximum complete band gap reaches 0. 168.

关 键 词：材料 三重晶格光子晶体 平面波展开法 完全带隙 介质环型 

分 类 号：O734[理学—晶体学]