【作者】 李侠； 谢康； 姜海明；

【Author】 Xia Li1,2,Kang Xie1,Hai-Ming Jiang1(1 school of opto-electronic information,university of electronic science and technology of china,chengdu 610054;2 school of geophysics,Chengdu university of technology,chengdu 610059)

【机构】 电子科技大学光电信息学院； 成都理工大学地球物理学院；

【摘要】 本文讨论了具有周期性缺陷层的一维光子晶体(慢波结构)中缺陷模导带的分布特性。利用传输矩阵法,我们发现,当缺陷层本身厚度为组成光子晶体的材料A厚度的奇数倍时,在同一禁带内所产生的缺陷模导带有两个,缺陷模导带的宽度随着缺陷层间隔的增加或缺陷层厚度增加而变窄;当缺陷层本身厚度为材料A厚度偶数倍时,在同一禁带内所导致的缺陷模导带只有一个,缺陷模导带的宽度随着缺陷层间隔的增加或缺陷层厚度增加而变窄,但是其中心位置并不会改变。更多还原

【Abstract】 the properties of guiding bands in one-dimensional photonic crystal with periodic defect layer(slow wave structure)were discussed in this paper.Using transfer matrix method(TMM),we have found that,there are two guiding bands in one photonic crystal band gap when the defect layer thickness is odd multiple of the thickness of material A,but there is only one guiding band in the same photonic crystal band gap when the defect layer thickness is even multiple of the thickness of material A.All those guiding bands would become narrower when the thickness of the defect layer becoming wider or the distance between defect layers becoming larger.更多还原