Focal shirt in Gaussian beams focused by a spherically aberrated bifocal lens

Authors
Citation
Bd. Lu et Xl. Ji, Focal shirt in Gaussian beams focused by a spherically aberrated bifocal lens, OPT COMMUN, 189(1-3), 2001, pp. 47-53
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS COMMUNICATIONS
ISSN journal
00304018 → ACNP
Volume
189
Issue
1-3
Year of publication
2001
Pages
47 - 53
Database
ISI
SICI code
0030-4018(20010301)189:1-3<47:FSIGBF>2.0.ZU;2-P
Abstract
The focusing of Gaussian beams by a spherically aberrated bifocal lens and related focal shift are studied. It is shown that the axial irradiance dist ribution, maximum irradiance along the axis and its position of focused Gau ssian beams depend upon the Fresnel number, spherical aberration and Focal length of the bifocal lens in general. A detailed analysis of the effect of spherical aberration and bifocal length on focal shift is made. (C) 2001 P ublished by Elsevier Science B.V.