Fractal dimension analysis of time-resolved diffusely scattered light from turbid samples

被引：2
|
作者：
Gributs, CEW [1 ]
Burns, DH [1 ]
机构：
[1] McGill Univ, Dept Chem, Montreal, PQ H3A 2K6, Canada
来源：
ANALYTICAL CHEMISTRY | 2005年 / 77卷 / 13期
关键词：
D O I：
10.1021/ac048495o
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
To improve quantification of optical properties in highly scattering and absorbing samples, time-correlated single photon counting measurements were analyzed using quantities related to the correlation dimension. Photon time-of-flight (TOF) distributions were collected in reflection and transmission optical configurations from samples made of cream and water-soluble dye (0 < mu(a) < 0.05 mm(-1); 100 < mu(s) < 250 mm(-1)). It was found that absorption and scattering properties of samples could be accurately quantified from information used to determine the correlation dimension. Scattering coefficients were estimated with less than 4% error for both optical configurations. Absorption estimates were made with CVs of 7.5 and 9.6% for reflection and transmission, respectively. Overall, fractal dimension analysis of TOF distributions provides a simple method of determining the optical properties of a sample.
引用
收藏
页码：4213 / 4218
页数：6
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