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Proceedings Paper • Open Access

Transverse and axial beam shaping in the non-paraxial domain
Author(s): Stephen M. Kuebler; Toufic G. Jabbour

Paper Abstract

The design of beam-shaping pupil filters most commonly employs the scalar theory of diffraction, which does not accurately describe the focal field distribution under high numerical aperture focusing. To account for the full vector character of the field, we have developed computational algorithms for designing phase-only pupil filters that incorporate the electromagnetic theory of diffraction. These algorithms use the method of generalized projects or particle swarm optimization to generate phase-filter solutions based on a targeted focal field irradiance distribution. Computational results are presented that demonstrate how these procedures can be used to design phase filters that reshape the transverse beam, or achieve axial super-resolution for a single focused spot. The methods can be applied in the design of beam-shaping and superresolving optics used for imaging, direct laser writing, and lithography.

Paper Details

Date Published: 24 August 2009
PDF: 8 pages
Proc. SPIE 7430, Laser Beam Shaping X, 743002 (24 August 2009); doi: 10.1117/12.827475
Show Author Affiliations
Stephen M. Kuebler, CREOL, The College of Optics and Photonics (United States)
Univ. of Central Florida (United States)
Toufic G. Jabbour, CREOL, The College of Optics and Photonics (United States)

Published in SPIE Proceedings Vol. 7430:
Laser Beam Shaping X
Andrew Forbes; Todd E. Lizotte, Editor(s)

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