The study of transport properties of multiple scattering media by low-coherence reflectometry

被引：0

作者：

Vilensky, M. A. ^{[1
]}

Zimnyakov, D. A. ^{[1
]}

Wang, R. K. ^{[2
]}

Cheung, S. C. ^{[2
]}

机构：

[1] Saratov NG Chernyshevskii State Univ, Saratov, Russia

[2] Cranfield Univ, Cranfield Biomed Ctr, Inst BioSci & Technol, Silsoe, Beds, England

来源：

SARATOV FALL MEETING 2005: COHERENT OPTICS OF ORDERED AND RANDOM MEDIA VI | 2006年 / 6164卷

基金：

俄罗斯基础研究基金会;

关键词：

optical coherence tomography; scattering; sedimentation; transport of light;

D O I：

10.1117/12.695256

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The low-coherence reflectometry (LCR) technique was used to examine the transport properties of dense suspensions of scattering particles in the course of particle sedimentation and aggregation. The shapes of backscattered signal and the reflectance of the layers of sedimented particles measured with the use of an OCT system in A-scan mode at various stages of sedimentation were analyzed in order to characterize the time-dependent alterations in transport properties (the transport mean free path and the transport albedo) of studied scattering media (water suspensions of polystyrene beads). The role of the static structure factor of the examined scattering systems in transport of light at high scatter concentrations is discussed. The influence of scattering anisotropy on the scatter correlation effect is analyzed on the base of experimental data obtained with various values of the scatter size and the wavelength of probe light. The potential of LCI technique for characterization of the structure of sedimented substances is discussed.

引用

页数：4

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