光子在具有各向异性光学特性的混浊介质中的迁移。

Photon migration in turbid media with anisotropic optical properties.

作者信息

Dudko Olga K, Weiss George H, Chernomordik Victor, Gandjbakhche Amir H

机构信息

Mathematical and Statistical Computing Laboratory, Center for Information Technology, National Institutes of Health, Bethesda, MD 20892, USA.

出版信息

Phys Med Biol. 2004 Sep 7;49(17):3979-89. doi: 10.1088/0031-9155/49/17/011.

DOI:10.1088/0031-9155/49/17/011

PMID:15470918

Abstract

We analyse properties of photon migration in reflectance measurements made on a semi-infinite medium bounded by a plane, in which optical parameters may vary in directions neither parallel to, nor perpendicular to the bounding plane. Our aim in doing this is to develop the formulae necessary to deduce parameters of directionality from both time-gated and continuous wave measurements. The mathematical development is based on a diffusion picture, in which the bounding plane is regarded as being totally absorbing so that all photons reaching the surface contribute to the reflectance.

摘要

我们分析了在由平面界定的半无限介质上进行反射率测量时光子迁移的特性，其中光学参数在既不平行也不垂直于边界平面的方向上可能会发生变化。我们这样做的目的是推导出从时间选通和连续波测量中推断方向性参数所需的公式。数学推导基于扩散模型，其中边界平面被视为完全吸收，因此所有到达表面的光子都对反射率有贡献。