Tight focusing of a radially polarized Laguerre-Bessel-Gaussian beam and its application to manipulation of two types of particles

被引：29

作者：

Nie, Zhongquan ^{[1
]}

Shi, Guang ^{[1
]}

Li, Dongyu ^{[2
]}

Zhang, Xueru ^{[1
]}

Wang, Yuxiao ^{[1
]}

Song, Yinglin ^{[1
]}

机构：

[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China

[2] Zhanjiang Normal Coll, Dept Phys, Zhanjiang 524048, Peoples R China

来源：

PHYSICS LETTERS A | 2015年 / 379卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Radially polarized Laguerre-Bessel-Gaussian beams; Vector diffraction theory; Radiation forces; Optical manipulation; SOLID IMMERSION LENS; CYLINDRICAL-VECTOR BEAMS; FIELD OPTICAL STORAGE; PARTIALLY COHERENT; PUPIL FILTER; FOCAL DEPTH; MICROSCOPY; SYSTEMS; FORCES; LIGHT;

D O I：

10.1016/j.physleta.2014.11.029

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The intensity distributions near the focus for radially polarized Laguerre-Bessel-Gaussian beams by a high numerical aperture objective in the immersion liquid are computed based on the vector diffraction theory. We compare the focusing properties of the radially polarized Laguerre-Bessel-Gaussian beams with those of Laguerre-Gaussian and Bessel-Gaussian modes. Furthermore, the effects of the optimally designed concentric three-zone phase filters on the intensity profiles in the focal region are examined. We further analyze the radiation forces on Rayleigh particles produced by the highly focused radially polarized Laguerre-Bessel-Gaussian beams using the specially engineered three-zone phase filters. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：857 / 863

页数：7

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