基于SOI结构的光波导表面光滑化机理
首发时间:2017-05-22
摘要:运用Material Studio软件对氢退火过程中硅氢键对硅基光波导表面粗糙形貌的作用进行了系统研究。通过对表面结构特性参数(如均方根位移、扩散系数等)的模拟分析,阐释了硅氢键的个数和位置对硅表面结构的影响。结果表明:硅氢键的形成是改善波导粗糙表面形貌的关键因素,能够有效降低退火温度、提高退火质量。
关键词: 硅氢键 氢退火 光波导 Material Studio
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Smoothing mechanism of optical waveguide surface based on silicon on insulator structure
Abstract:The role of silicon-hydrogen bond in the hydrogen annealing process is investigated systematically by using Material Studio software. Based on the sinulation and analysis of surface characteristic parameters(such as mean square displacement, diffusion coefficient, etc.), we illustrate the relationship between the surface structure and the number and position of silicon-hydrogen bond. The data strongly suggest that silicon-hydrogen bond is the critical factor to ameliorate the rough surface morphology of waveguide, which can effectively reduce the annealing temperature and improve the quality of annealing.
Keywords: Silicon-hydrogen bond Hydrogen annealing Waveguide Material Studio
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