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Polychromatic reflectance and transmittance of a slab with a randomly rough boundary

机译:边界随机粗糙的平板的多色反射率和透射率

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摘要

We investigated four different approximation models for describing the polychromatic reflectance and transmittance of a slab with a randomly rough boundary while taking into account the coherent and the incoherent scattering of the rough boundary. Comparisons with experiments (an etched-silicon wafer) show that approximation models that apply a two-scale roughness to the randomly rough boundary and that take into account the coherent and the incoherent scattering yield better agreement and extend the range of validity of the approximation to shorter wavelengths.
机译:我们研究了四种不同的近似模型,它们描述了具有随机粗糙边界的平板的多色反射率和透射率,同时考虑了粗糙边界的相干和非相干散射。与实验(蚀刻硅晶片)的比较表明,将两尺度粗糙度应用于随机粗糙边界并考虑了相干和非相干散射的近似模型可产生更好的一致性,并将近似的有效性范围扩展至较短的波长。

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