Polarization dependent extinction coefficients of superparamagnetic colloids in transverse and longitudinal configurations of magnetic field

被引：19

作者：

Mehta, R. V. ^{[1
]}

机构：

[1] Bhavnagar Univ, Dept Phys, Bhavnagar 364002, Gujarat, India

来源：

OPTICAL MATERIALS | 2013年 / 35卷 / 07期

关键词：

Extinction coefficients; Ferrofluids; Magnetic holes; Binary mixture of ferrofluid and suspension of nonmagnetic particles; Magneto optics; Superparamagnetic colloids; OPTICAL TRANSMISSION; FERRITE PARTICLES; FERROFLUIDS; BIREFRINGENCE; FLUID; SUSPENSION; SCATTERING; SYSTEM; LIGHT; HOLES;

D O I：

10.1016/j.optmat.2013.02.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We review here, our work on the light scattering by ferrofluids and mixture of ferrofluids and other nonmagnetic suspensions subjected to an external static magnetic field. Detailed derivation of extinction coefficients of the systems when incident light is propagating along transverse and longitudinal direction of the field are carried out. In case of inclusion of anisotropic diamagnetic micron sized particles in a ferrofluids, effects of 'magnetic holes' generated in the system on the extinction are discussed. The present work is analyzed in light of other similar investigations. It is shown that the study of polarization dependence of extinction coefficients in transverse field configuration is useful to arrive at an unambiguous conclusion regarding chain formation in a ferrofluid. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：1436 / 1442

页数：7

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