摘要
用平面波展开法研究以ZnO为背景介质,由周期性排列的空气圆孔柱、椭圆孔柱和正方孔柱分别构成的三角晶格结构的光子晶体,计算在不同参数条件下光子晶体的能带曲线。研究结果表明,通过调控孔柱和晶格常数的大小,可以改变光子晶体带隙位置和宽度;对于所有ZnO基三角晶格结构空气孔二维光子晶体,TE模比TM模带隙更宽;正方空气孔柱光子晶体的带隙比圆柱和椭圆柱光子晶体的带隙要宽。
The plane wave expansion method is used to study the photonic crystals （PhCs） conforming to triangular lattice configuration with periodic circle, ellipse and square air holes embedded in ZnO background and calculate their band gaps with different parameters. Research results show that the location and band width of PhC can be changed by modulating its lattice constant and the size of air holes. For all ZnO-based two-dimensional air hole PhCs with triangular lattice configuration, the band gap of TE mode is wider than that of TM mode. The band gap of PhC with square air holes is wider than the results of PhCs formed by circle and ellipse air holes.
出处
《山东建筑大学学报》
2011年第2期126-129,共4页
Journal of Shandong Jianzhu University
基金
山东省自然科学基金项目(ZR2010AM025)
山东建筑大学校内博士基金项目(XNBS0903)
关键词
ZnO光子晶体
平面波展开法
空气柱
晶格常数
带隙
ZnO photonic crystal
plane-wave expansion method
air hole
lattice constant
band gap
