Focusing of higher-order radially polarized Laguerre-Gaussian beam

被引：47

作者：

Kozawa, Yuichi ^{[1
]}

Sato, Shunichi ^{[1
]}

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2012年 / 29卷 / 11期

基金：

日本科学技术振兴机构;

关键词：

LASER-BEAMS; LONG DEPTH; FOCAL SPOT; MODE BEAM; LIGHT; DIFFRACTION; GENERATION; SYSTEMS; SCALAR; PHASE;

D O I：

10.1364/JOSAA.29.002439

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We consider the formation of a small focal spot, which has been reported in [J. Opt. Soc. Am. A 24, 1793 ( 2007)], by separating a higher-order radially polarized Laguerre-Gaussian beam into two parts: a Bessel-like multi-ring part and an annular part. The latter forms a dominant small spot of longitudinal electric field component near the focus, while the former mainly contributes to a weak annular pattern of radial component. (C) 2012 Optical Society of America

引用

页码：2439 / 2443

页数：5

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