Physical origin of the Gouy phase shift

被引：350

作者：

Feng, SM ^{[1
]}

Winful, HG ^{[1
]}

机构：

[1] Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA

来源：

OPTICS LETTERS | 2001年 / 26卷 / 08期

关键词：

D O I：

10.1364/OL.26.000485

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We show explicitly that the well-known Gouy phase shift of any focused beam originates from transverse spatial confinement, which, through the uncertainty principle, introduces a spread in the transverse momenta and hence a shift in the expectation value of the axial propagation constant. A general expression is given for the Gouy phase shift in terms of expectation values of the squares of the transverse momenta. Our result also explains the phase shift in front of the Kirchhoff diffraction integral. (C) 2001 Optical Society of America.

引用

页码：485 / 487

页数：3

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