Controlling light scattering and polarization by spherical particles with radial anisotropy

被引：20
|
作者：
Ni, Y. X. [1 ]
Gao, L. [1 ]
Miroshnichenko, A. E. [2 ]
Qiu, C. W. [3 ]
机构：
[1] Soochow Univ, Dept Phys, Jiangsu Key Lab Thin Films, Suzhou 215006, Peoples R China
[2] Australian Natl Univ, Nonlinear Phys Ctr, Canberra, ACT 0200, Australia
[3] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore
来源：
OPTICS EXPRESS | 2013年 / 21卷 / 07期
基金：
澳大利亚研究理事会;
关键词：
DIELECTRIC ANISOTROPY; MAGNETIC-PROPERTIES; OPTICAL FORCES; NANOPARTICLES;
D O I：
10.1364/OE.21.008091
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Based on full-wave electromagnetic theory, we derive the zero-forward and zero-backward scattering conditions for radially anisotropic spheres within the quasi-static limit. We find that the near-field intensity can be tuned dramatically through the adjustment of the radial anisotropy, while the far-field light scattering diagrams are similar under the zero-forward or zero-backward scattering conditions. Generalized "Brewster's angle" for anisotropic spheres is also derived, at which the scattering light is totally polarized. In addition, the high-quality polarized scattering wave and the tunable polarization conversion can be achieved for the radially anisotropic spheres. (c) 2013 Optical Society of America
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页码：8091 / 8100
页数：10
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