Nonparaxial analyses of radially polarized beams diffracted at a circular aperture

被引：14

作者：

Jia, Xinting ^{[1
]}

Wang, Youqing ^{[1
]}

Li, Bo ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Coll Optoelect Sci & Engn, Wuhan 430074, Peoples R China

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 07期

关键词：

LIGHT-BEAMS; VORTEX BEAMS; PROPAGATION; GENERATION;

D O I：

10.1364/OE.18.007064

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

On the basis of the vectorial Rayleigh diffraction integral, the analytical expressions for the electromagnetic fields of the radially polarized beams diffracted at a circular aperture are derived, which helps us investigate the propagation properties of the apertured radially polarized beams in the nonparaxial and paraxial regimes. The unapertured and paraxial cases can be viewed as the special cases of the general result obtained in this paper. The analyses indicate that the nonparaxiality of the apertured radially polarized beams depends on the ratio of the waist width to the wavelength and the truncation parameter. In addition, the truncation parameter and the beam order have a great impact on the beam diffraction effect and the beam evolution behavior. (C) 2010 Optical Society of America

引用

页码：7064 / 7075

页数：12

共 21 条

[1] Radially polarized 3 kW beam from a CO2 laser with an intracavity resonant grating mirror [J].