Evolution of focused Hankel waves and Bessel beams

被引：35

作者：

Chávez-Cerda, S ^{[1
]}

New, GHC ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Laser Opt & Spect Grp, London SW7 2BW, England

来源：

OPTICS COMMUNICATIONS | 2000年 / 181卷 / 4-6期

关键词：

Bessel beams; non-diffracting beams; beam propagation;

D O I：

10.1016/S0030-4018(00)00779-3

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The focusing properties of a Bessel beam are analysed and interpreted in terms of its constituent conical waves. While these waves focus to a ring image in the focal plane of the lens, the beam also exhibits an apparent focus on the axis in front of the focal plane. The physical origin of this feature is explained, and it is also shown that, under certain focusing conditions, a Bessel beam can be reconstructed beyond the focal plane. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：369 / 377

页数：9