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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 8 — Apr. 14, 2008
  • pp: 5838–5848

Focal shift in vector Mathieu-Gauss beams

Raul I. Hernandez-Aranda and Julio C. Gutiérrez-Vega  »View Author Affiliations

Optics Express, Vol. 16, Issue 8, pp. 5838-5848 (2008)

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The three dimensional distribution of focused vector Mathieu-Gauss beams (vMG) is studied in the vicinity of the geometrical focus of an unapertured thin lens. We adopt two different intensity based criteria for defining the actual focus. Our analysis confirms the existence of a focal shift towards the lens for this type of beams. The dependence of the focal shift on the different parameters of the beams is discussed in detail. Beams with different states of polarization are studied as well, and it is shown that the focal shift is independent of the polarization.

© 2008 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(140.3300) Lasers and laser optics : Laser beam shaping
(220.2560) Optical design and fabrication : Propagating methods
(260.1960) Physical optics : Diffraction theory
(350.5500) Other areas of optics : Propagation

ToC Category:
Physical Optics

Original Manuscript: January 18, 2008
Revised Manuscript: April 4, 2008
Manuscript Accepted: April 8, 2008
Published: April 11, 2008

Raul I. Hernandez-Aranda and Julio C. Gutiérrez-Vega, "Focal shift in vector Mathieu-Gauss beams," Opt. Express 16, 5838-5848 (2008)

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