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| LED光学传播的有限元研究 | |
| 引用本文： | 徐晓良,宋镜明. LED光学传播的有限元研究[J]. 光学与光电技术, 2011, 9(2): 54-57 |
| 作者姓名： | 徐晓良 宋镜明 |
| 作者单位： | 1. 装备指挥技术学院士官系,北京,102249 2. 北京航空航天大学光电所,北京,100083 |
| 摘 要： | 有限时域差分(FDTD)广泛应用于提高发光二极管(LED)芯片外量子效率.这种方法是针对波导结构的一种分析计算,对于激光器是有效的,但是对LED很难模拟其有源层多种模式出射的情况.应用有限元电磁场分析方法对LED进行光学建模并对光子晶体结构的外量子效率进行了计算.特别在对光源的处理上,使用了点光源球面波来进行分析并且考... |
| 关 键 词： | 发光二极管 有限元 有限时域差分 量子效率 |
Research on LED's Optical Propagation Model Based on Finite Element Method |
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| XU Xiao-liang,SONG Jing-ming. Research on LED's Optical Propagation Model Based on Finite Element Method[J]. optics&optoelectronic technology, 2011, 9(2): 54-57 | |
| Authors: | XU Xiao-liang SONG Jing-ming |
| Affiliation: | 1 Department of Sergeant.The Academy of Equipment Command &Technology.Beijing 102249.China; 2 School of Instrument Science and Opto-Electronic Engineering.Beijing University of Aeronautics and Astronautics.Beijing 100083,China ) |
| Abstract: | A lot of efforts have been dedicated to improve the external quantum efficiency of LED chips for many years.Finite difference time domain(FDTD) is widely used for this problem.FDTD is efficient for laser diode analysis due to its wave guide analysis method.However,in LEDs.multi-modes are emitted from active layer and can’t be treated by FDTD. In this paper,finite elemental method(FEM) is applied to simulate the propagation of LED.Noted that point spherical wave is applied and coherence of light source is also considered.The model is finally simplified for convenience of calculation.An experiment of LED based on photon crystal(PHC) structure is simulated to verify the model. |
| Keywords: | LED FEM FDTD quantum effciency |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |