| 具有非均匀渐变界面DBR的光学特性分析 |
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| 引用本文： | 王小东,吴旭明,王青,曹玉莲,何国荣,谭满清.具有非均匀渐变界面DBR的光学特性分析[J].物理学报,2006,55(10):4983-4986. |
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| 作者姓名： | 王小东 吴旭明 王青 曹玉莲 何国荣 谭满清 |
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| 作者单位： | 中国科学院半导体研究所，北京 100083 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 应用特征矩阵法研究了非均匀渐变界面Al0.9Ga0.1As/AlyGa1-yAs/GaAs/AlxGa1-xAs DBR的光学特性.建立了非均匀渐变界面AlyGa1-yAs的折射率模型，并得到了渐变界面特征矩阵的解析解，通过特征矩阵法分别计算了突变GaAs/Al0.9Ga0.1As DBR和渐变DBR的反射谱和反射相移，分析了非均匀渐变层对DBR光学特性的影响，对渐变DBR，需要在DBR前面再增加一定厚度的非均匀渐变相位匹配层才能使整个DBR满足中心波长相位匹配条件，并通过光学厚度近似方法求出相位匹配层厚度.
关键词：
DBR
反射谱
反射相移
特征矩阵法
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| 关 键 词： | DBR 反射谱 反射相移 特征矩阵法 |
| 收稿时间： | 02 22 2006 12:00AM |
| 修稿时间： | 2006-02-222006-03-13 |
Optical characteristics of DBR with inhomogeneous graded interfaces |
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| Wang Xiao-Dong,Wu Xu-Ming,Wang Qing,Cao Yu-Lian,He Guo-Rong,Tan Man-Qing.Optical characteristics of DBR with inhomogeneous graded interfaces[J].Acta Physica Sinica,2006,55(10):4983-4986. |
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| Authors: | Wang Xiao-Dong Wu Xu-Ming Wang Qing Cao Yu-Lian He Guo-Rong Tan Man-Qing |
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| Institution: | Institute of Semiconductors, Chinese Academy of Science, Beijing 100083, China |
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| Abstract: | Optical properties of Al0.9 Ga0.1 As/Aly Ga1-y As/GaAs/Alx Ga1- x As DBR with inhomogeneous graded interfaces has been investigated by using characteristic matrix method. The refractive index model and the analytic characteristic matrix of graded interfaces are obtained. The reflectance spectrum and the reflective phase shift are calculated for GaAs/Al0.9 Ga0.1 As DBR and graded interfaces DBR by using characteristic matrix method. The effect of graded interfaces on the optical properties of DBR is discussed. The result shows an extra graded phase matching layer must be added in front of the graded interfaces DBR to fulfil the conditions of phase matching at central wavelength. The accurate thickness of phase matching layer is calculated by optical thickness approximation method. |
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| Keywords: | DBR |
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