Time-dependent transport through scattering media: from radiative transfer to diffusion

被引：65

作者：

Elaloufi, R ^{[1
]}

Carminati, W ^{[1
]}

Greffet, JJ ^{[1
]}

机构：

[1] Ecole Cent Paris, Lab Energet Mol & Macroscop, CNRS, F-92295 Chatenay Malabry, France

来源：

JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS | 2002年 / 4卷 / 05期

关键词：

light diffusion; radiative transfer equation; scattering media; biomedical imaging; diffusion coefficient;

D O I：

10.1088/1464-4258/4/5/355

中图分类号：

O43 [光学];

学科分类号：

070207 [光学]; 0803 [光学工程];

摘要：

We study the propagation of light pulses through scattering media using the time-dependent radiative transfer equation. A standard discrete-ordinate method is used to solve this equation in the space-frequency domain. We present calculations of diffuse transmission through scattering slabs, in the presence of absorption and anisotropic scattering. We show that the diffusive regime is attained at long times only for thick slabs. Comparisons with diffusion theory show that the proper choice of the diffusion constant is an important issue for time-dependent transport.

引用

页码：S103 / S108

页数：6

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