光学
瑞利散射
物理
瑞利长度
高斯光束
光学镊子
折射率
连贯性(哲学赌博策略)
拉盖尔多项式
梁(结构)
散射
俘获
米氏散射
高斯分布
相干后向散射
光散射
激光器
激光束
量子力学
生态学
生物
作者
Chengliang Zhao,Yangjian Cai
出处
期刊:Optics Letters
[Optica Publishing Group]
日期:2011-06-06
卷期号:36 (12): 2251-2251
被引量:152
摘要
The radiation forces on a Rayleigh dielectric sphere induced by a focused partially coherent elegant Laguerre-Gaussian (ELG) beam are investigated by using the Rayleigh scattering theory. It is found that a focused partially coherent ELG beam with suitable mode orders can be used to trap a Rayleigh particle whose refractive index is larger or smaller than that of the ambient by varying its initial spatial coherence width. Therefore, one can use one optical-trap system to trap two types of particles with different refractive indices.
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