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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 28, Iss. 11 — Nov. 1, 2011
  • pp: 2235–2242

Depth-minimized, large period half-wave corrugation for linear to radial and azimuthal polarization transformation by grating-mode phase management

Thomas Kämpfe and Olivier Parriaux  »View Author Affiliations


JOSA A, Vol. 28, Issue 11, pp. 2235-2242 (2011)
http://dx.doi.org/10.1364/JOSAA.28.002235


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Abstract

The transformation of the polarization distribution of a laser beam from linear to radial and azimuthal by means of a subwavelength binary corrugation etched in a high-index substrate faces fabrication difficulties and an inherent contradiction preventing the achievement of both conditions of 100% transmission and of π phase difference between polarization components. The contradiction is solved by resorting to an easily fabricable high-index corrugation on a low-index substrate where a larger period gives rise to grating-mode reflection/transmission phases that permit the fulfillment of both conditions with a depth-minimized corrugation. From the principle of the solution, a targeted numerical search gives the complete set of the corresponding shallow structures, achieving polarization rotation in a fitting analytical form versus normalized variables.

© 2011 Optical Society of America

OCIS Codes
(050.2230) Diffraction and gratings : Fabry-Perot
(230.5440) Optical devices : Polarization-selective devices
(260.5430) Physical optics : Polarization
(050.2065) Diffraction and gratings : Effective medium theory
(050.6624) Diffraction and gratings : Subwavelength structures
(130.5440) Integrated optics : Polarization-selective devices

ToC Category:
Diffraction and Gratings

History
Original Manuscript: July 14, 2011
Manuscript Accepted: August 30, 2011
Published: October 7, 2011

Citation
Thomas Kämpfe and Olivier Parriaux, "Depth-minimized, large period half-wave corrugation for linear to radial and azimuthal polarization transformation by grating-mode phase management," J. Opt. Soc. Am. A 28, 2235-2242 (2011)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-28-11-2235


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