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Proceedings Paper

Focal shift of dual auto-focusing Airy beams
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Paper Abstract

The intensity distributions of self-focusing dual Airy beams are studied analytically by means of their statistical moments. Closed form expressions are derived that allow the determination of the focal shift through two different criteria; the first one is based on the second moment of the intensity whereas the second takes advantage of the beams symmetry to employ encircled-power calculations for defining the focus. Our results confirm the existence of a focal shift as expected, and show an effective quadratic dependence on the truncation parameter of the Airy beams.

Paper Details

Date Published: 17 November 2014
PDF: 8 pages
Proc. SPIE 9194, Laser Beam Shaping XV, 919418 (17 November 2014); doi: 10.1117/12.2061454
Show Author Affiliations
Jorge A. Garza, Tecnológico de Monterrey (Mexico)
Raul I. Hernandez-Aranda, Tecnológico de Monterrey (Mexico)

Published in SPIE Proceedings Vol. 9194:
Laser Beam Shaping XV
Andrew Forbes; Todd E. Lizotte, Editor(s)

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