Focusing at low Fresnel numbers in the presence of cylindrical or spherical aberration

被引：18

作者：

Jiang, DY

Stamnes, JJ

机构：

[1] Department of Physics, University of Bergen, N-5007 Bergen

来源：

PURE AND APPLIED OPTICS | 1997年 / 6卷 / 01期

关键词：

D O I：

10.1088/0963-9659/6/1/010

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper we discuss focusing of two-dimensional and three-dimensional scalar waves at low Fresnel numbers in the presence of cylindrical or spherical aberration. We show that a larger maximum axial intensity than in the aberration-free case can be obtained with a positive cylindrical or spherical aberration. Also, we give a physical explanation of this unexpected result.

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页码：85 / 96

页数：12

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