Observation of a stronger focus due to spherical aberration

Authors
Karman, GP Van Duijl, A Woerdman, JP
Citation
Gp. Karman et al., Observation of a stronger focus due to spherical aberration, J MOD OPT, 45(12), 1998, pp. 2513-2517
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
JOURNAL OF MODERN OPTICS
ISSN journal
09500340 → ACNP
Volume
45
Issue
12
Year of publication
1998
Pages
2513 - 2517
Database
ISI
SICI code
0950-0340(199812)45:12<2513:OOASFD>2.0.ZU;2-X
Abstract
Recently it was predicted that addition of spherical aberration to a focusi ng system with a small Fresnel number can increase the value of the maximum intensity on the optical axis. In this paper we report experiments which c onfirm this prediction. To this end we have measured the three-dimensional intensity distribution in the focal region of a lens with spherical aberrat ion. We also show that this effect cannot be used to increase the intensity at a fixed distance from the lens.