Photon transport in thin disordered slabs

被引：8

作者：

Gopal, V ^{[1
]}

Ramakrishna, SA ^{[1
]}

Sood, AK ^{[1
]}

Kumar, N ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India

来源：

PRAMANA-JOURNAL OF PHYSICS | 2001年 / 56卷 / 06期

关键词：

photon migration; persistent random walks; Monte Carlo simulation;

D O I：

10.1007/s12043-001-0077-x

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We examine using Monte Carlo simulations, photon transport in optically 'thin' slabs whose thickness L is only a few times the transport mean free path l*, with particles of different scattering anisotropies. The confined geometry causes an auto-selection of only photons with looping paths to remain within the slab. The results of the Monte Carlo simulations are borne out by our analytical treatment that incorporates directional persistence by the use of the Omstein-Uhlenbeck process, which interpolates between the short time ballistic and long time diffusive regimes.

引用

页码：767 / 778

页数：12

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