量子电子学报2012，Vol.29Issue(6)：735-740,6.DOI:10.3969/j.issn.1007-5461.2012.06.013
二维介质柱正方复合周期结构光子晶体的禁带研究
Band gaps in two-dimensional photonic crystals with composite square-lattices of dielectric columns
摘要
Abstract
A two-dimensional photonic crystal consisting of two square arrays of square dielectric columns with different sizes in air is proposed and investigated theoretically. For the proposed structure, Maxwell's equations are Fourier transformed rigorously, and a plane-wave expansion method with fast convergence is then formulated. With this method, the band structure of the photonic crystal is numerically analyzed carefully. It is shown that compared with the related structure with a single square lattice, the absolute band gap of the proposed structure is remarkably increased after optimizing the geometric parameters, owing to the decrease of the structural symmetries.关键词
光纤与波导光学/光子禁带/平面波展开法/光子晶体Key words
fiber and waveguide optics/ photonic band gap/ plane-wave expansion method/ photonic crystal分类
信息技术与安全科学引用本文复制引用
濮荣强,余红英,沈林放..二维介质柱正方复合周期结构光子晶体的禁带研究[J].量子电子学报,2012,29(6):735-740,6.基金项目
安徽省教育厅"电子技术应用型人才培养模式创新实验区"(0942)资助项目 （0942）
