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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 47, Iss. 12 — Apr. 20, 2008
  • pp: 1963–1967

Tight focusing of radially and azimuthally polarized vortex beams through a uniaxial birefringent crystal

Zhiming Zhang, Jixiong Pu, and Xiqing Wang  »View Author Affiliations

Applied Optics, Vol. 47, Issue 12, pp. 1963-1967 (2008)

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Under the approximation of small birefringence, the properties of radially and azimuthally polarized vortex beams tightly focused through a uniaxial birefringent crystal are investigated. The contour plots of intensity distribution near the focus and in the real focal plane are illustrated by performing numerical calculations. The dependence of the focal shift on numerical aperture and birefringence are analyzed. Moreover, the Strehl ratio in the real focal plane as a function of birefringence is also analyzed. It is revealed that the variation of birefringence has no influence on the focal shift and the Strehl ratio of azimuthally polarized vortex beams.

© 2008 Optical Society of America

OCIS Codes
(050.1960) Diffraction and gratings : Diffraction theory
(260.1440) Physical optics : Birefringence

ToC Category:
Physical Optics

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

Zhiming Zhang, Jixiong Pu, and Xiqing Wang, "Tight focusing of radially and azimuthally polarized vortex beams through a uniaxial birefringent crystal," Appl. Opt. 47, 1963-1967 (2008)

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