Light Transmission Model for Determination of the Refractive Index of Solid Particles in Suspensions: An Immersion Study

被引：3

作者：

Raty, Jukka ^{[1
]}

Niskanen, Ilpo ^{[2
]}

Myllyla, Risto ^{[3
]}

Peiponen, Kai-Erik ^{[4
]}

机构：

[1] Univ Oulu, Measurement & Sensor Lab, FI-87400 Kajaani, Finland

[2] Univ Oulu, Thule Inst, FI-90014 Oulu, Finland

[3] Univ Oulu, Optoelect & Measurement Tech Lab, FI-90014 Oulu, Finland

[4] Univ Eastern Finland, Dept Math & Phys, FI-80101 Joensuu, Finland

来源：

APPLIED SPECTROSCOPY | 2011年 / 65卷 / 05期

关键词：

Refractive index; Immersion liquid method; Particle suspensions; Colloids; Calcium fluoride; Transmission model;

D O I：

10.1366/10-06148

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We report on a model to determine the light transmission of solid particles in immersion liquids. Using the model, optical and physical properties of suspensions such as the refractive index of the particles can be retrieved. The model can also be used in the case of colored suspensions, where the detection of only the maximum transmission would give an inaccurate refractive index for a particle. The validity of the method was tested with CaF2 particles. Potential applications include scientific studies of the optical properties of micro- and nanoparticles or microorganisms in a liquid matrix. The model is also useful in industry where monitoring of suspensions and colloids is an issue.

引用

页码：557 / 560

页数：4

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