Magnetically induced Mie resonance in a magnetic sphere suspended in a ferrofluid

被引：32

作者：

Bhatt, Hem ^{[1
]}

Patel, Rajesh ^{[1
]}

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

机构：

[1] Bhavnagar Univ, Dept Phys, Bhavnagar 364022, Gujarat, India

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2010年 / 27卷 / 04期

关键词：

ENERGY-TRANSPORT VELOCITY; COHERENT BACKSCATTERING; ELECTROMAGNETIC-WAVES; MULTIPLE-SCATTERING; DIFFUSION CONSTANT; LIGHT-SCATTERING; MEDIA; FIELD; LOCALIZATION; PARTICLES;

D O I：

10.1364/JOSAA.27.000873

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Mie scattering functions for a magnetizable sphere whose relative refractive index is dependent on the externally applied magnetic field are computed for four different sizes of the sphere. It is found that Mie resonances are observed at certain critical fields when the incident light is polarized with its electric vector perpendicular to the applied field. The width of resonance as well as the critical fields shifts with the increase in size of the spheres. Results are compared with the experimentally observed scattering effects in a dispersion of magnetite spheres in a ferrofluid. (c) 2010 Optical Society of America

引用

页码：873 / 877

页数：5

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