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Procedure for retrieving the optical properties of a two-layered medium from time-resolved reflectance measurements

机译:从时间分辨的反射率测量中检索两层介质的光学特性的过程

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摘要

A procedure for retrieving the optical properties of a two-layered diffusive medium based on an exact analytical solution of the diffusion equation and on relative multidistance time-resolved reflectance measurements is presented. The method overcomes some limitations of previously developed procedures. Five parameters of the medium have been fitted: the absorption and the reduced scattering coefficients of both layers and the thickness of the first layer. The actual values of the parameters are correctly retrieved by the procedure. The inversion procedure does not require an initial guess for the unknown optical properties, but the starting value for the thickness of the first layer needs to be estimated with an error smaller than 50%. (C) 2003 Optical Society of America. [References: 10]
机译:提出了一种基于扩散方程的精确解析解和相对多距离时间分辨反射率测量值来检索两层扩散介质的光学特性的过程。该方法克服了先前开发的程序的一些限制。已拟合介质的五个参数:两层的吸收系数和减小的散射系数以及第一层的厚度。该过程正确检索了参数的实际值。反转过程不需要对未知的光学特性进行初步猜测,但是第一层厚度的起始值需要估算,且误差小于50%。 (C)2003年美国眼镜学会。 [参考:10]

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