Fresnel diffraction by circular and serrated apertures illuminated with an ultrashort pulsed-laser beam

被引：60

作者：

Gu, M

Gan, XS

机构：

[1] Department of Physical Optics, University of Sydney, NSW

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 1996年 / 13卷 / 04期

关键词：

D O I：

10.1364/JOSAA.13.000771

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Fresnel diffraction patterns by circular and serrated apertures under ultrashort pulsed-laser illumination are investigated in detail. A comparison of the diffraction patterns for pulsed and continuous wave illuminations reveals that an ultrashort pulsed beam of 10 fs can result in a significant effect on the distribution of the intensity. As a result a uniform intensity distribution in the transverse direction of the beam can be achieved as a result of the interference of the different frequency components within the pulsed beam. The interference fringes caused by the wavelets originating from the diffraction aperture can be further reduced when a serrated aperture is used. (C) 1996 Optical Society of America

引用

页码：771 / 778

页数：8

共 18 条

[1] INTENSITY DISTRIBUTION OF ABERRATION-FREE DIFFRACTION PATTERNS DUE TO CIRCULAR APERTURES IN LARGE F-NUMBER OPTICAL SYSTEMS [J].