Bessel-modulated Gaussian beams with quadratic radial dependence

被引:57
作者
Caron, CFR [1 ]
Potvliege, RM [1 ]
机构
[1] Univ Durham, Dept Phys, Durham DH1 3LE, England
基金
英国工程与自然科学研究理事会;
关键词
paraxial wave equation; nonparaxial beams; Bessel-Gauss beams; phase dislocation;
D O I
10.1016/S0030-4018(99)00174-1
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We describe a class of closed-form solutions of the paraxial wave equation whose transverse profile is a Gaussian function multiplied by a Bessel function, the argument of which is quadratic in the distance from the axis. Their characteristics are compared to those of Bessel-Gauss beams. Unlike the latter, these Bessel-modulated Gaussian beams propagate colinearly. They have interesting non-Gaussian features for certain values of their parameters, such as concentric rings of phase dislocation outside the waist plane or a flat axial profile. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:83 / 93
页数:11
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