Radiation forces of focused partially coherent vortex beams on a dielectric sphere

被引：0

作者：

Rao L. ^{[1
]}

Zheng X. ^{[2
]}

Xiao B. ^{[1
]}

机构：

[1] Department of Physics and Electromechanical Engineering, Sanming University

[2] Library, Sanming University

来源：

Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams | 2010年 / 22卷 / 01期

关键词：

Coherence; Diffractive optics; Radiation force; Vortex;

D O I：

10.3788/HPLPB20102201.0024

中图分类号：

学科分类号：

摘要：

The radiation forces of focused partially coherent Bessel vortex beams on a dielectric sphere in the Rayleigh scattering regime are theoretically investigated. Numerical results demonstrate that the magnitude of the radiation forces on a dielectric sphere near the focus point decreases as the topological charge, the coherence length or the parameter α increases. When the topological charge n=0, 1, the stable three-dimensional trap can be obtained, and can be used to manipulate the particle with a refractive index lower than that of the ambient media.

引用

页码：24 / 28

页数：4

共 15 条

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