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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 22 — Nov. 15, 2006
  • pp: 3252–3254

Vectorial vortex mode transformation for a hollow waveguide using Pancharatnam–Berry phase optical elements

Yaniv Yirmiyahu, Avi Niv, Gabriel Biener, Vladimir Kleiner, and Erez Hasman  »View Author Affiliations


Optics Letters, Vol. 31, Issue 22, pp. 3252-3254 (2006)
http://dx.doi.org/10.1364/OL.31.003252


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Abstract

Transformation and inverse transformation between a free-space linearly polarized beam and the vectorial vortex mode of a circular hollow waveguide by use of Pancharatnam–Berry phase optical elements is proposed. Demonstration was achieved by fabricating GaAs subwavelength gratings and utilizing a 300 μ m diameter hollow metallic waveguide for 10.6 μ m wavelength CO 2 laser radiation. The mode transformations and the excitation of a single vectorial mode inside the hollow waveguide were verified by full polarization measurements. In addition, the inverse mode transformation of the single vectorial mode excitation in the waveguide enabled us to experimentally obtain a linearly polarized bright spot with a high central lobe.

© 2006 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2390) Fiber optics and optical communications : Fiber optics, infrared
(230.5440) Optical devices : Polarization-selective devices
(260.5430) Physical optics : Polarization

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: July 24, 2006
Manuscript Accepted: August 22, 2006
Published: October 26, 2006

Citation
Yaniv Yirmiyahu, Avi Niv, Gabriel Biener, Vladimir Kleiner, and Erez Hasman, "Vectorial vortex mode transformation for a hollow waveguide using Pancharatnam-Berry phase optical elements," Opt. Lett. 31, 3252-3254 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-22-3252

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