含负折射率材料的一维光子晶体的能带特性  

The character of band structure in one-dimensional photonic crystals containing negative refraction materials

作　　者：许玉龙[1] 刘玉波[1] 冷建才[1] 牛爱芹[1] 

机构地区：[1]山东轻工业学院数理学院,山东济南250353

出　　处：《山东轻工业学院学报（自然科学版）》2007年第3期88-91,共4页Journal of Shandong Polytechnic University

摘　　要：进一步研究光子晶体的传输特性,从色散关系出发,通过数值模拟计算研究了由正折射率材料和负折射率材料交替组成的一维光子晶体的能带结构与光子晶体的结构参数之间的关系。结果表明:当两种材料的光学厚度相同时,含负折射率的光子晶体的带隙比传统的光子晶体带隙大得多,并且具有狭窄的透射带。讨论了带隙的存在与折射率比值的关系,与传统光子晶体的透射谱进行了比较。为应用负折射率材料拓宽一维光子晶体带隙和设计多通道光子晶体滤波器提供了有益的理论参考。The main properties of one-dimensional photonic band gap structures that include layers of negative refraction material are analyzed from the explicit dispersion equation. The results show that the photonic crystals containing negative refraction materials haw： wider photonic band gap which is different from the case of traditional photonic crystals with narrow transmission bands when the two layers have the same optical thickness. The relations between appearing of stop bands and the ratio of refraction index are discussed, the transmission properties in the two type photonic crystals are compared, which might supply a beneficial reference for the usage of the negative material to design and fabricate the high-quality reflector and the multichannel filters.

关 键 词：负折射率材料 一维光子晶体 带隙结构 透射谱 

分 类 号：O431[机械工程—光学工程]