【摘要】 光子晶体是一种介电常数空间周期性变化、具有光子带隙结构,能控制光子传播状态的新型材料。根据横截面上介质柱构成的多边形边数n和数目m满足一定关系。介绍了三种二维光子晶体的结构。利用平面波展开法(PWE)计算并仿真了三种光子晶体的TE和TM偏振模式的禁带结构分布,得出了介质柱排列方式对禁带带隙的影响。为进一步光子晶体的实验制备和实际应用提供了理论依据。更多还原

【Abstract】 Photonic crystal is a new material by which photon can be controlled,that has photonic band gap and dielectric constant speriodic changes in the space. According to the relationship between the number of edges n and the number of m of polygon that composed of dielectric cylinders in the cross-section,three two-dimensional photonic crystal structures are introduced. The PWE method is used to calculate and simulate these band structures of a two-dimensional photonic crystal with TE and TM polarization mode. The PBG’s rules are found by changing the arrangement of dielectric cylinders.The theoretical is provided to thefurther experimental preparation and practical application of photonic crystals.更多还原