Optical forces from an evanescent wave on a magnetodielectric small particle

被引:32
|
作者
Nieto-Vesperinas, M. [1 ]
Saenz, J. J. [2 ,3 ]
机构
[1] CSIC, Inst Ciencia Mat Madrid, Madrid 28049, Spain
[2] Univ Autonoma Madrid, Dept Fis Mat Condensada, E-28049 Madrid, Spain
[3] DIPC, Donostia San Sebastian 20018, Spain
关键词
ELECTROMAGNETIC FORCE; FIELD;
D O I
10.1364/OL.35.004078
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We report the first study on the optical force exerted by an evanescent wave on a small sphere with both electric and magnetic responses to the incident field, immersed in an arbitrary nondissipative medium. New expressions and effects from their gradient, radiation pressure, and curl components are obtained owing to the particle induced electric and magnetic dipoles, as well as to their mutual interaction. We predict possible dramatic changes in the force depending on the host medium, the polarization, and the nature of the surface wave. (C) 2010 Optical Society of America
引用
收藏
页码:4078 / 4080
页数:3
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