文献类型： 外文期刊
作者： Huang, M. D. 1 ; Xu, Q. 1 ; Lu, Y. H. 2 ; Lee, Y. P. 2 ; Lu, Y. H. 2 ; Lee, Y. P. 2 ; Zhang, P. 3 ; Rhee, J. Y. 4 ;
作者机构： 1.Tianjin Normal Univ, Phys & Elect Informat Coll, Tianjin 300387, Peoples R China
2.Hanyang Univ, Quantum Photon Sci Res Ctr, Seoul 133791, South Korea
3.Tianjin Acad Agr Sci, Inst Informat, Tianjin 300192, Peoples R China
4.Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea
关键词： 1-D photonic crystal;photonic band gap;defect mode
期刊名称：JOURNAL OF THE KOREAN PHYSICAL SOCIETY （ 影响因子：0.649； 五年影响因子：0.533 ）
ISSN： 0374-4884
年卷期： 2008 年 52 卷
页码：
收录情况： SCI
摘要： One-dimensional photonic crystals, consisting of a stratified periodic structure and another stratified structure with contained defect layers, have been investigated. It is found that the photonic band gaps of this combined structure can be greatly broadened when it is well designed. The defect-mode range within the band gap caused by the defect layers can be compensated by the photonic band gap of a superposed photonic crystal that has a perfectly periodic structure. Thus, a broad band gap is obtained, characterized by a high level of reflectance. Widened omni-directional band gaps can also be realized by this method.
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