Radiation forces on a dielectric microsphere produced by non-paraxial optical fields of an electric dipole

被引：1
|
作者：
Lin, Q [1 ]
Wang, ZY
Ni, J
机构：
[1] Zhejiang Univ, Inst Opt, Hangzhou 310028, Peoples R China
[2] Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Hangzhou 310028, Peoples R China
来源：
JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS | 2002年 / 4卷 / 04期
关键词：
radiation forces; non-paraxial beams; optical trapping;
D O I：
10.1088/1464-4258/4/4/312
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Radiation forces on a dielectric sphere produced by non-paraxial optical fields of an electric dipole in the Rayleigh regime of light scattering are analysed theoretically and calculated numerically. The results show that the radiation forces produced by non-paraxial Gaussian beams are quite different from those produced by paraxial Gaussian beams in several respects, and non-paraxial optical fields are more suitable in capturing minute Rayleigh particles.
引用
收藏
页码：440 / 445
页数：6
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