Scattering-phase theorem
Scattering-phase theorem
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DOI：
10.1364/ol.36.001215
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发表时间：
2011-04-01
期刊：
影响因子：
3.6
通讯作者：
Popescu, Gabriel
中科院分区：
文献类型：
--
作者：
Wang, Zhuo;Ding, Huafeng;Popescu, Gabriel
我们推导出了非均匀介质薄片的定量相位图像与体散射参数之间的两个数学关系，即，散射平均自由程l（s）和各向异性因子g。l（s）与相移的空间方差成反比，g与相位梯度的方差有关。这些公式，统称为散射相位定理，允许以空间分辨的方式提取l（s）和g，并跨越整个组织切片，即，根据l（s）和g映射组织的大横截面。(C)2011年美国光学学会
We derive two mathematical relations between quantitative phase images of thin slices of inhomogeneous media and the scattering parameters of the bulk, i.e., scattering mean free path, l(s), and anisotropy factor, g. The l(s) turns out to be inversely proportional to the spatial variance of the phase shift, and g is related to the variance of the phase gradient. These formulas, referred collectively to as the scattering-phase theorem, allow for extracting l(s) and g in a spatially resolved manner and across an entire tissue section, that is, mapping large cross sections of tissues in terms of l(s) and g. (C) 2011 Optical Society of America