Generation and self-healing of a radially polarized Bessel-Gauss beam

被引：83

作者：

Wu, Gaofeng

Wang, Fei ^{[1
]}

Cai, Yangjian

机构：

[1] Soochow Univ, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China

来源：

PHYSICAL REVIEW A | 2014年 / 89卷 / 04期

基金：

中国国家自然科学基金;

关键词：

CYLINDRICAL VECTOR BEAMS; NONDIFFRACTING BEAMS; DIFFRACTION; LIGHT; RECONSTRUCTION; PROPERTY; TRANSFORMATION; PROPAGATION; SCALAR;

D O I：

10.1103/PhysRevA.89.043807

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report experimental generation of a radially polarized Bessel-Gauss (RPBG) beam of order 1 with the help of a spatial light modulator, a spiral phase plate, and a radial polarization converter. Furthermore, we carry out a comparative study of the self-healing properties of a RPBG beam and a linearly polarized Bessel-Gauss (LPBG) beam which are blocked by a sector-shaped opaque obstacle both experimentally and numerically. Our results clearly show that the self-healing ability of a RPBG beam indeed is superior to that of a LPBG beam, and some physical interpretations are given. Our results will be useful for particle trapping and microscopy.

引用

页数：7

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