Improvement of absolute band gaps in 2D photonic crystals by anisotropy in dielectricity
文献类型：期刊论文
| 作者 | Li, ZY ; Gu, BY ; Yang, GZ |
| 刊名 | EUROPEAN PHYSICAL JOURNAL B
 |
| 出版日期 | 1999 |
| 卷号 | 11期号:1页码:65 |
| 关键词 | SPONTANEOUS EMISSION INFRARED WAVELENGTHS LATTICES EXISTENCE SILICON ATOMS |
| ISSN号 | 1434-6028 |
| 通讯作者 | Li, ZY: Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | Two-dimensional (2D) photonic band gaps (PBG) structure fabricated from anisotropic dielectric is studied by solving Maxwell's equations with use of plane-wave expansion method. Numerical simulations show that absolute photonic band gaps can be substantially improved in two dimensional square and triangular lattices of cylinders by introducing anisotropy in material dielectricity. Owing to different refractive indices for electromagnetic waves with E- and H-polarization, the quasi-independent adjustment of band gaps for the E- and H-polarization modes can be implemented by uniaxial crystals with their extraordinary axis parallel to the cylinders. Large absolute band gaps can be created for uniaxial cylinders in air with a positive anisotropy. In the case of air holes in background uniaxial dielectric with even a weak negative anisotropy, the absolute band gap can be increased 2-3 times. Large absolute band gap can also be obtained in other complex configurations of uniaxial and biaxial materials and this enables a full exploitation of potential utilization for anisotropic materials available in nature. Such a mechanism of band gap adjustment should open up a new scope for designing band gaps in 2D PEG structures. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/39663]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Li, ZY,Gu, BY,Yang, GZ. Improvement of absolute band gaps in 2D photonic crystals by anisotropy in dielectricity[J]. EUROPEAN PHYSICAL JOURNAL B,1999,11(1):65. |
| APA | Li, ZY,Gu, BY,&Yang, GZ.(1999).Improvement of absolute band gaps in 2D photonic crystals by anisotropy in dielectricity.EUROPEAN PHYSICAL JOURNAL B,11(1),65. |
| MLA | Li, ZY,et al."Improvement of absolute band gaps in 2D photonic crystals by anisotropy in dielectricity".EUROPEAN PHYSICAL JOURNAL B 11.1(1999):65. |
入库方式： OAI收割
来源：物理研究所
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