Generalized M2 factor of hard-edged diffracted flattened Gaussian beams

被引：13

作者：

Lü, B ^{[1
]}

Luo, SR ^{[1
]}

机构：

[1] Sichuan Univ, Inst Laser Phys & Chem, Chengdu 610064, Peoples R China

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2001年 / 18卷 / 09期

关键词：

D O I：

10.1364/JOSAA.18.002098

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

On the basis of generalized truncated second-order moments, a closed-form expression for the generalized M-2 factor of hard-edge diffracted flattened Gaussian beams is derived that is determined by the beam order and the truncation parameter. Special cases are discussed. Moreover, it is shown that the M2 factor of truncated lane waves is equal to 4 root3/3, independent of the aperture width. (C) 2001 Optical Society of America.

引用

页码：2098 / 2101

页数：4

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