GEOMETRIC CONSTRAINTS FOR THE DESIGN OF DIFFUSING-WAVE SPECTROSCOPY EXPERIMENTS

被引：89

作者：

KAPLAN, PD ^{[1
]}

KAO, MH ^{[1
]}

YODH, AG ^{[1
]}

PINE, DJ ^{[1
]}

机构：

[1] EXXON RES & ENGN CO, ANNANDALE, NJ 08801 USA

来源：

APPLIED OPTICS | 1993年 / 32卷 / 21期

关键词：

D O I：

10.1364/AO.32.003828

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Diffusing-wave spectroscopy (DWS) experiments require the choice of suitable sample geometry. We study sample geometries for transmission experiments by performing DWS measurements on a variable thickness cell. The data reveal that DWS works well, giving consistent answers to within 5% when the cell is more than 10 random walk step lengths thick, and that the input geometry is less significant when sample cells are immersed in water than when they are surrounded by air. Further, we see that the applicability of the diffusion approximation depends on the anisotropy of individual scattering events.

引用

页码：3828 / 3836

页数：9

共 30 条

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GONATAS CP, IN PRESS PHYS REV E

[12] APPLICATION OF LANGEVIN EQUATION TO FLUID SUSPENSIONS [J].