| 太赫兹波段三角晶格二维光子晶体的传输特性 |
| |
| 引用本文： | 梁兰菊.太赫兹波段三角晶格二维光子晶体的传输特性[J].发光学报,2009,30(1):35-39. |
| |
| 作者姓名： | 梁兰菊 |
| |
| 作者单位： | 枣庄学院 物理与电子工程系, 山东 枣庄 277160 |
| |
| 基金项目： | 山东省教育厅科研发展计划，山东省科技厅科技项目 |
| |
| 摘 要： | 用平面波展开法研究了太赫兹(THz)波在二维三角晶格光子晶体中的传输特性。数值计算了以硅为背景的空气圆柱构成的二维三角晶格光子晶体的能带结构和态密度,计算表明在介质圆柱半径r=0.47a(a为空气介质柱的晶格常数)出现最大完全光子带隙,带隙宽度为0.070 1 THz;当r=0.49a和r=0.45a时,E偏振和H偏振分别出现最大光子带隙,带隙宽度分别0.102 2,0.192 3 THz。光子晶体能态密度的分布也表明了存在光子带隙的范围。研究结果为THz器件的开发提供了理论依据。
|
| 关 键 词： | 太赫兹波 光子晶体 平面波展开法 三角晶格 |
| 收稿时间： | 2008-08-25 |
Propagation Characteristic of 2D Triangular Lattice Photonic Crystal in THz Range |
| |
| LIANG Lan-ju.Propagation Characteristic of 2D Triangular Lattice Photonic Crystal in THz Range[J].Chinese Journal of Luminescence,2009,30(1):35-39. |
| |
| Authors: | LIANG Lan-ju |
| |
| Institution: | Department of Physics and Electron Engineering Zaozhuang University, Zaozhuang 277160, China |
| |
| Abstract: | Propagation characteristic of two-dimensional triangular lattice photonic crystals in THz range was studied by using PWM.The band gap structure and density of photon states of two-dimensional triangular lattice photonic crystals constructed from air in Si dielectric matrix was calculated.It was found that when the radius was 0.47a,it can generate maximum absolute photonic band gap with 0.070 1 THz,and it can generate maximum photonic band gap with 0.102 2 and 0.192 3 THz when the radius was 0.49a and 0.45a,... |
| |
| Keywords: | THz wave photonic crystal plan wave expansion method triangular lattice |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《发光学报》浏览原始摘要信息 |
| 点击此处可从《发光学报》下载免费的PDF全文 |
