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首页> 外文期刊>Physica, B. Condensed Matter >Calculations of optical properties for quaternary III-V semiconductor alloys in the transparent region and above (0.2-4.0eV)
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Calculations of optical properties for quaternary III-V semiconductor alloys in the transparent region and above (0.2-4.0eV)

机译：在透明区域及更高区域（0.2-4.0eV）中的四级III-V半导体合金的光学性能计算

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摘要

The modeling of the spectral behavior of the refractive indices of the binary, ternary and quaternary III-V semiconductor alloys in the energy range from 0.2 to 4 eV, including the transparent region, is presented. The extended model of interband transition contributions incorporates not only the fundamental absorption edge contribution to the dielectric function, but also contributions from higher energy and indirect transitions. It is demonstrated that indirect energy transitions must be included in the calculations of the complex dielectric function of the material in the transparent region. Indirect transitions from different critical points in the Brillouin zone are treated separately. The comparison between the theoretical refractive indices and the experimental data for AlGaAsSb, AlGaInAs, AlGaInP, GaInAsSb, and GaInPAs alloys is presented. These calculations have been applied to the design of Bragg mirrors with the highest refractive index contrast for heterostructure lasers. (C) 2002 Published by Elsevier Science B.V. [References: 35]
机译：提出了在0.2至4 eV能量范围内（包括透明区域）的二元，三元和四元III-V半导体合金的折射率光谱行为的模型。带间跃迁贡献的扩展模型不仅包含了对介电函数的基本吸收边贡献，而且还包含了较高能量和间接跃迁的贡献。已经证明，在透明区域中材料的复介电函数的计算中必须包括间接能量跃迁。来自布里渊区不同临界点的间接过渡分别进行处理。给出了AlGaAsSb，AlGaInAs，AlGaInP，GaInAsSb和GaInPAs合金的理论折射率与实验数据之间的比较。这些计算已应用于异质结构激光器具有最高折射率对比度的布拉格反射镜的设计。 （C）2002由Elsevier Science B.V.出版[参考文献：35]

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