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Proceedings Paper

Sub-wavelength confinement of the orbital angular momentum of light probed by plasmonic nanoantennae resonances
Author(s): M. Carli; P. Zilio; D. Garoli; V. Giorgis; G. Ruffato; F. Romanato
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Paper Abstract

In this work, we study how the Orbital Angular Momentum of a Plasmonic Vortex (an SPP carrying OAM) can be probed by the LSPR of nanoantennae conveniently integrated inside a Plasmonic Vortex Lens. We show that the turning “on” or “off” of the antennae acts as a fingerprint of the OAM of the PV and we discuss a particularly meaningful case. The integrated structure is fabricated and experimentally characterized in the near field. The results are in good agreement with the simulations and seem to prove the capability to transfer OAM properties control at the nanoscale.

Paper Details

Date Published: 27 February 2015
PDF: 8 pages
Proc. SPIE 9371, Photonic and Phononic Properties of Engineered Nanostructures V, 937117 (27 February 2015); doi: 10.1117/12.2080003
Show Author Affiliations
M. Carli, Univ. degli Studi di Padova (Italy)
P. Zilio, Univ. degli Studi di Padova (Italy)
D. Garoli, Univ. degli Studi di Padova (Italy)
V. Giorgis, Istituto Officina dei Materiali, CNR (Italy)
G. Ruffato, Univ. degli Studi di Padova (Italy)
F. Romanato, Univ. degli Studi di Padova (Italy)
Istituto Officina dei Materiali, CNR (Italy)


Published in SPIE Proceedings Vol. 9371:
Photonic and Phononic Properties of Engineered Nanostructures V
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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