Investigation on utilizing laser speckle velocimetry to measure the velocities of nanoparticles in nanofluids

被引：13

作者：

Qian, Ming ^{[1
]}

Liu, Jun

Yan, Ming-Sheng

Shen, Zhong-Hua

Lu, Jian

Ni, Xiao-Wu

Li, Qiang

Xuan, Yi-Min

机构：

[1] Nanjing Univ Sci & Technol, Dept Appl Phys, Nanjing 210094, Peoples R China

[2] Nanjing Univ Sci & Technol, Sch Power Engn, Nanjing 210094, Peoples R China

来源：

OPTICS EXPRESS | 2006年 / 14卷 / 17期

关键词：

D O I：

10.1364/OE.14.007559

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Laser speckle velocimetry (LSV) is presented to measure the velocities of nanoparticles in nanofluids and its feasibility is verified in this paper. An optical scattering model of a single nanoparticle is developed and numerical computations are done to simulate the formation of the speckles by the addition of the complex amplitudes of the scattering lights from multiple nanoparticles. Then relative experiments are done to form speckles when nanofluids are illuminated by a laser beam. The results of the experiments are in agreement with the numerical results, which verify the feasibility of utilizing LSV to measure the velocities of nanoparticles in nanofluids. (c) 2006 Optical Society of America

引用

页码：7559 / 7566

页数：8

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