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周期性微结构硅基表面辐射特性数值研究

NUMERICAL STUDY OF RADIATION CHARACTERISTICS OF SILICON SURFACE WITH PERIODICAL MICROSTRUCTURE
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摘要 本文通过时域有限差分法求解Maxwell方程组,分析微结构表面与入射辐射间的相互作用,结合近场-远场辐射转换模型,获得了尺寸、温度和入射波长等参数对表面双向反射分布函数的影响规律,研究结果为热辐射的光谱和方向调控技术提供了数值基础。 The FDTD(Finite Difference Time Domain) method is employed to solve the Maxwell s equations and to analyze the interaction of surface microstructure and incident radiation.Based on the near-to-far field transformation model,the effects of dimension parameters,temperature and incident wavelength on surface BRDF(Bidirectional Reflectance Distribution Function) are obtained. The results offer a numerical foundation to control spectral and directional properties of thermal radiation.
出处 《工程热物理学报》 EI CAS CSCD 北大核心 2009年第12期2074-2076,共3页 Journal of Engineering Thermophysics
基金 国家自然科学基金项目资助(No.50836002 No.50806017)
关键词 有限时域差分 表面辐射特性 微结构 热辐射 电磁波 finite difference time domain surface radiation characteristics microstructure thermal radiation electromagnetic
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