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Proceedings Paper

Fresnel ellipsoid approach for Gaussian beam focusing
Author(s): Gabrielle Thériault; Réal Tremblay; Nathalie McCarthy
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Paper Abstract

This paper studies the diffraction of monochromatic Gaussian beams by a sequence of parallel coaxial circular apertures in the near-field. Confocal Fresnel ellipsoids are used to design diffraction-based and wavelength-specific focusing systems through a sequence of circular apertures. The results obtained with this research show that Gaussian beams can be focused through a sequence of circular aperture diffraction effects.

Paper Details

Date Published: 12 September 2008
PDF: 8 pages
Proc. SPIE 7062, Laser Beam Shaping IX, 706215 (12 September 2008); doi: 10.1117/12.794829
Show Author Affiliations
Gabrielle Thériault, COPL, Univ. Laval (Canada)
Réal Tremblay, COPL, Univ. Laval (Canada)
Nathalie McCarthy, COPL, Univ. Laval (Canada)


Published in SPIE Proceedings Vol. 7062:
Laser Beam Shaping IX
Andrew Forbes; Todd E. Lizotte, Editor(s)

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