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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 46, Iss. 20 — Jul. 10, 2007
  • pp: 4258–4265

Polarization conversion in conical diffraction by metallic and dielectric subwavelength gratings

Nicolas Passilly, Kalle Ventola, Petri Karvinen, Pasi Laakkonen, Jari Turunen, and Jani Tervo  »View Author Affiliations

Applied Optics, Vol. 46, Issue 20, pp. 4258-4265 (2007)

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Subwavelength metallic and dielectric diffraction gratings which rotate the linear polarization of incident light by 90° are examined. Using rigorous diffraction theory in total-internal-reflection configuration, it is shown that full conversion from incident transverse electric field to transverse magnetic zero-order field can be achieved with both dielectric and metallic elements, but dielectric gratings provide higher efficiency and are thus preferable. The fabrication aspects and constraints are discussed in detail and the behavior of the gratings over broad wavelength bands is presented.

© 2007 Optical Society of America

OCIS Codes
(230.1950) Optical devices : Diffraction gratings
(260.2110) Physical optics : Electromagnetic optics
(260.5430) Physical optics : Polarization

ToC Category:
Physical Optics

Original Manuscript: February 6, 2007
Manuscript Accepted: March 14, 2007
Published: June 20, 2007

Nicolas Passilly, Kalle Ventola, Petri Karvinen, Pasi Laakkonen, Jari Turunen, and Jani Tervo, "Polarization conversion in conical diffraction by metallic and dielectric subwavelength gratings," Appl. Opt. 46, 4258-4265 (2007)

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