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  • Vol. 36, Iss. 17 — Sep. 1, 2011
  • pp: 3479–3481

Nondiffracting transversally polarized beam

G. H. Yuan, S. B. Wei, and X.-C. Yuan  »View Author Affiliations


Optics Letters, Vol. 36, Issue 17, pp. 3479-3481 (2011)
http://dx.doi.org/10.1364/OL.36.003479


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Abstract

Generation of a nondiffracting transversally polarized beam by means of transmitting an azimuthally polarized beam through a multibelt spiral phase hologram and then highly focusing by a high-NA lens is presented. A relatively long depth of focus ( 4.84 λ ) of the electric field with only radial and azimuthal components is achieved. The polarization of the wavefront near the focal plane is analyzed in detail by calculating the Stokes polarization parameters. It is found that the polarization is spatially varying and entirely transversally polarized, and the polarization singularity disappears at the beam center, which makes the central bright channel possible.

© 2011 Optical Society of America

OCIS Codes
(050.1960) Diffraction and gratings : Diffraction theory
(140.3300) Lasers and laser optics : Laser beam shaping
(230.6120) Optical devices : Spatial light modulators
(260.5430) Physical optics : Polarization

ToC Category:
Diffraction and Gratings

History
Original Manuscript: June 14, 2011
Revised Manuscript: July 28, 2011
Manuscript Accepted: August 8, 2011
Published: September 1, 2011

Citation
G. H. Yuan, S. B. Wei, and X.-C. Yuan, "Nondiffracting transversally polarized beam," Opt. Lett. 36, 3479-3481 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-17-3479


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