|
|||||
|
|
| 用于短波段发光二极管的二维光子晶体禁带研究 | |
| 引用本文： | 刘金川,姜伟,李书平,康俊勇.用于短波段发光二极管的二维光子晶体禁带研究[J].光学学报,2012,32(6):623006-216. |
| 作者姓名： | 刘金川 姜伟 李书平 康俊勇 |
| 作者单位： | 刘金川:厦门大学物理与机电工程学院, 福建 厦门 361000 姜伟:厦门大学物理与机电工程学院, 福建 厦门 361000 李书平:厦门大学物理与机电工程学院, 福建 厦门 361000 康俊勇:厦门大学物理与机电工程学院, 福建 厦门 361000 |
| 基金项目： | 国家863计划（2011AA03A111）和国家自然科学基金(90921002)资助课题。 |
| 摘 要： | 运用平面波展开法(PWE),针对光子晶体在短波长段发光二极管(LED)领域上的应用,主要选择高频禁带模式,研究了4种具有较大应用潜力的二维光子晶体结构,包括正方空气柱结构、三角空气柱结构、正方介质柱结构和三角介质柱结构。在不同晶格常数、占空比(AFF)、柱半径和晶格常数比下,分析了TE模式和TM模式光子禁带的变化。数据分析表明,光子禁带中心波长随AFF增加而变小。相比于其他结构,正方介质柱结构更适于短波段光子晶体LED来提高其出光效率,三角介质柱结构和三角空气柱结构适合用于构造短波段偏振光LED。 |
| 关 键 词： | 光学器件 光子晶体 发光二极管 平面波展开法 光子禁带 |
| 收稿时间： | 2011/12/12 |
Study of Photonic Band Gap of 2D Photonic Crystals Used in Short-Wavelength LED |
|
| Liu Jinchuan Jiang Wei Li Shuping Kang Junyong.Study of Photonic Band Gap of 2D Photonic Crystals Used in Short-Wavelength LED[J].Acta Optica Sinica,2012,32(6):623006-216. | |
| Authors: | Liu Jinchuan Jiang Wei Li Shuping Kang Junyong |
| Institution: | Liu Jinchuan Jiang Wei Li Shuping Kang Junyong(College of Physics and Mechanical and Electrical Engineering,Xiamen University,Xiamen,Fujian 361000,China) |
| Abstract: | Using plane wave expansion (PWE) method, four kinds of promising two-dimensional (2D) photonic crystals including square air holes, hexagonal air holes, square rods and hexagonal rods aiming at short-wavelength light emitting diode (LED) are studied. Transverse electric (TE) and transverse magnetic (TM) photonic band gaps (PBGs) are calculated under different lattice constants with different air filling fractions (AFFs) and ratios of pillar radius to lattice constant. The analysis of data indicates that the center wavelength of PBG increases with smaller AFF. Compared with other structures, the structure with square rods has more potential in improving the extraction efficiency of short-wavelength LED, while those with hexagonal rods and hexagonal air holes are suitable for structuring short-wavelength polarization LED. |
| Keywords: | optical devices photonic crystal light emitting diode plane wave expansion photonic band gap |
| 本文献已被 CNKI 等数据库收录！ | |