Effects of beam ellipticity on Z-scan measurements

被引：41

作者：

Mian, SM

Taheri, B

Wicksted, JP

机构：

[1] Department of Physics, Center for Laser Research, Oklahoma State University, Stillwater

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 1996年 / 13卷 / 05期

关键词：

D O I：

10.1364/JOSAB.13.000856

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report an investigation of the popular Z-scan technique for elliptical Gaussian beams. A thin lens wave optics theory is developed for such a beam by generalizing the existing theory for circular Gaussian beams. We find that the Z-scan signature is greatly influenced by two parameters, namely, the ellipticity of the input beam and the waist separation. Depending on these parameters, an additional peak and valley may appear in a closed-aperture Z scan, whereas a small asymmetry may be observed in an open-aperture Z scan. We demonstrate what the qualitative features of both open and closed Z scans would be for a beam with any ellipticity. (C) 1996 Optical Society of America

引用

页码：856 / 863

页数：8

共 24 条

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