3-DIMENSIONAL FIELD DISTRIBUTIONS OF FOCUSED GAUSSIAN-APODIZED ANNULAR BEAMS

被引：1

作者：

BHABU, SJ ^{[1
]}

POON, TC ^{[1
]}

机构：

[1] VIRGINIA POLYTECH INST & STATE UNIV,BRADLEY DEPT ELECT ENGN,BLACKSBURG,VA 24061

来源：

JOURNAL OF OPTICS-NOUVELLE REVUE D OPTIQUE | 1991年 / 22卷 / 04期

关键词：

DIFFRACTION; FOCAL SHIFT;

D O I：

10.1088/0150-536X/22/4/003

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The diffraction of a plane wave through a Gaussian-apodized annular aperture lens is investigated. It is shown that in the focal plane of the lens, the amplitude distribution is the product of a zero-order Bessel function and a Gaussian. The field distribution around the geometrical focus is then investigated when a variety of parameters, such as the Fresnel number and the obscuration ratio of the aperture are varied.

引用

页码：185 / 191

页数：7

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