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Full four-dimensional and reciprocal Mueller matrix bidirectional reflectance distribution function of sintered polytetrafluoroethylene

机译:聚四氟乙烯烧结体的全四方和相互的穆勒矩阵双向反射分布函数

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摘要

We measured the Mueller matrix bidirectional reflectance distribution function (BRDF) of a sintered polytetrafluoroethylene (PTFE) sample over the scattering hemisphere for six incident angles (0° to 75° in 15° steps) and for four wavelengths (351 nm, 532 nm, 633 nm, and 1064 nm). The data for each wavelength were fit to a phenomenological description for the Mueller matrix BRDF that is an extension of the bidirectional surface scattering modes developed by Koenderink and van Doorn [J. Opt. Soc. Am. A 15, 2903 (1998)] for unpolarized BRDF. This description is designed to be complete, to obey the appropriate reciprocity conditions, and to provide a full description of the Mueller matrix BRDF as a function of incident and scattering directions for each wavelength. The description was further extended by linearizing the surface scattering mode coefficients with wavelength. This data set and its parameterization provides a comprehensive on-demand description of the reflectance properties for this commonly used diffuse reflectance reference material over a wide range of wavelengths.
机译:我们在散射半球上测量了六个入射角(以15°为步长从0°到75°)和四个波长(351 nm,532 nm, 633 nm和1064 nm)。每个波长的数据都适合于Mueller矩阵BRDF的现象学描述,该模型是Koenderink和van Doorn开发的双向表面散射模式的扩展[J.选择。 Soc。上午。 A 15,2903(1998)]用于非极化BRDF。此说明旨在完整,遵守适当的互易条件,并提供针对每个波长的入射和散射方向的穆勒矩阵BRDF的完整说明。通过将表面散射模式系数与波长线性化,进一步扩展了描述。该数据集及其参数化为该常用的漫反射参考材料在很宽的波长范围内的反射特性提供了全面的按需描述。

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    Thomas A. Germer;

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  • 年(卷),期 -1(56),33
  • 年度 -1
  • 页码 9333–9340
  • 总页数 19
  • 原文格式 PDF
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