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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 16 — Aug. 15, 2014
  • pp: 4899–4902

Bilayer holey plasmonic vortex lenses for the far field transmission of pure orbital angular momentum light states

Pierfrancesco Zilio, Giuseppe Parisi, Denis Garoli, Marta Carli, and Filippo Romanato  »View Author Affiliations


Optics Letters, Vol. 39, Issue 16, pp. 4899-4902 (2014)
http://dx.doi.org/10.1364/OL.39.004899


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Abstract

We report the design of a holey plasmonic vortex lens (PVL) structure able to couple circularly polarized impinging light to a plasmonic vortex in the form of the fundamental TM mode of a metal–insulator–metal plasmonic waveguide. The field transmitted through the hole milled at the center of the second metal layer of the structure is characterized by a well-defined spiral harmonic, entirely determined by the spin of impinging light and by the chirality of the PVL structure. Scattering finite elements simulations are presented for single layer standard PVLs and for bilayer ones, comparing the spiral spectra of the transmitted field and the efficiencies of the architectures.

© 2014 Optical Society of America

OCIS Codes
(230.5440) Optical devices : Polarization-selective devices
(240.6680) Optics at surfaces : Surface plasmons
(050.4865) Diffraction and gratings : Optical vortices
(250.5403) Optoelectronics : Plasmonics
(260.6042) Physical optics : Singular optics

ToC Category:
Optoelectronics

History
Original Manuscript: June 11, 2014
Revised Manuscript: July 17, 2014
Manuscript Accepted: July 18, 2014
Published: August 14, 2014

Citation
Pierfrancesco Zilio, Giuseppe Parisi, Denis Garoli, Marta Carli, and Filippo Romanato, "Bilayer holey plasmonic vortex lenses for the far field transmission of pure orbital angular momentum light states," Opt. Lett. 39, 4899-4902 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-16-4899

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