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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 8, Iss. 5 — May. 1, 2010
  • pp: 517–519

Far-field properties of a cylindrically polarized vector beam and its beam quality beyond the paraxial approximation

Xinting Jia, Bo Li, and Youqing Wang  »View Author Affiliations


Chinese Optics Letters, Vol. 8, Issue 5, pp. 517-519 (2010)


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Abstract

The far-field analytical expressions for the electromagnetic fields of a cylindrically polarized vector beam propagating in free space are obtained based on the vector angular spectrum and the method of stationary phase. The far-field energy flux distributions and the beam quality by the power in the bucket (PIB) in the nonparaxial regime have been investigated. The PIB of the cylindrically polarized beam depends on the ratio of the waist width to wavelength, the order of the Laguerre polynomial, and the angle between the electrical vector and the radial direction. The analyses show that azimuthal polarization compared with radial polarization has better energy focusability in the far field.

© 2010 Chinese Optics Letters

OCIS Codes
(260.2110) Physical optics : Electromagnetic optics
(260.5430) Physical optics : Polarization
(350.5500) Other areas of optics : Propagation

Citation
Xinting Jia, Bo Li, and Youqing Wang, "Far-field properties of a cylindrically polarized vector beam and its beam quality beyond the paraxial approximation," Chin. Opt. Lett. 8, 517-519 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-5-517

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