F Nee S M
Appl Opt. 1996 Jul 1;35(19):3570. doi: 10.1364/AO.35.003570.
Polarization of specular reflection and near-specular scattering (NSS) by a randomly rough surface is investigated by the use of a Mueller matrix formulation. The collective effect by a rough surface on the average specular field results in reflectance loss and polarization, which can be explained by an effective medium theory. Effects of random NSS can be represented by a scattering matrix that is partially coherent and polarized. The incoherent and unpolarized part of scattering causes depolarization, and the coherent and polarized parts of scattering change the apparent polarization properties of specular reflection. Results of a simulation and least-squares fit of ellipsometric data to the models including the NSS effect, for a black anodized aluminum sample, are presented. Simultaneous least-squares fits for both ellipsometric data and reflectance data at multiple angles of incidence at three different wavelengths gave approximately the same rms roughness, which agrees with the profilometric values reported previously.
利用穆勒矩阵公式研究了随机粗糙表面对镜面反射和近镜面散射（NSS）的偏振特性。粗糙表面对平均镜面场的集体效应导致反射率损失和偏振，这可以用有效介质理论来解释。随机NSS的效应可以用一个部分相干和偏振的散射矩阵来表示。散射的非相干和非偏振部分会导致去偏振，而散射的相干和偏振部分会改变镜面反射的表观偏振特性。给出了对包括NSS效应的模型进行模拟以及对黑色阳极氧化铝样品的椭偏数据进行最小二乘拟合结果。在三个不同波长下对多个入射角的椭偏数据和反射率数据同时进行最小二乘拟合，得到了大致相同的均方根粗糙度，这与之前报道的轮廓测量值一致。
