Polarization singularities in near-field of Gaussian vortex beam diffracted by a circular aperture

被引:0
|
作者
李建龙 [1 ]
机构
[1] College of Physical Science and Technology,Sichuan University
基金
中国博士后科学基金;
关键词
polarization singularities; rigorous electromagnetic field theory; Gaussian vortex beams;
D O I
暂无
中图分类号
O436 [物理光学(波动光学)];
学科分类号
070207 ; 0803 ;
摘要
Polarization singularities in the near-field of Gaussian vortex beams diffracted by a circular aperture are studied by a rigorous electromagnetic theory.It is shown that there exist C-points and L-lines,which depend on off-axis displacement parameters along the x and y directions,waist width,wavelength,and topological charge of the diffracted Gaussian vortex beam,as well as on propagation distance.The results are illustrated by numerical calculations.
引用
收藏
页码:232 / 237
页数:6
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