| Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 6, 2011
|
|
|---|---|---|
| Article Number | 11031 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.2971/jeos.2011.11031 | |
| Published online | 03 June 2011 | |
Regular papers
Analytical expressions for diffraction-free beams through an opaque disk
1
School of Electronic Engineering, Xidian University, Xi’an, 710071, China
2
Département d’optique, CNRS UMR-6614 CORIA, Av. de l’Université, 76801 Saint-Etienne du Rouvray cedex, France
3
IRSEEM, ESIGELEC, Avenue de l’Universite, 76801 Saint-Etienne du Rouvray, France
4
LøA, EA4464, 2 Bd Lavoisier, Université d’Angers, 49045 Angers cedex 01, France
Received:
31
January
2011
We establish analytical expressions that demonstrate that the beam produced after diffraction of a gaussian beam by an opaque disk and collimation by a lens can be approached by a diffraction-free J0 Bessel function. We further demonstrate that a similar analytical expression can be established in the case of femtosecond incident pulses.
Key words: diffraction / Bessel beams / diffraction-free beams
© The Author(s) 2011. All rights reserved.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.