@inproceedings{bbe65805c2f64fdf8ee13fea6353a778,
title = "Efficient OAM generation at the nanoscale level by means of plasmonic vortex lens",
abstract = "Surface plasmon waves carry an intrinsic transverse spin angular momentum, which is locked to their propagation direction. On the other hand, helical plasmonic distributions may also carry an orbital angular momentum that is linked to the field topology. Apparently, when such a singular plasmonic mode propagates on a surface or is guided on a conic structure its helicity and the transverse spin can be coupled to the far-field spin and orbital angular momentum. We discuss the mechaism of such a coupling by using 2D and 3D guiding architetures. We analyze the coupling e{\"i}?ciency in each case as well as the intriguing spin-locking phenomenon occurring in our system. Finally we experimentally demonstrate the e{\"i}?cient beaming of a single-handed mode decorated by a desired orbital angular using accurately fabricated nanostructures.",
keywords = "Helicity, Spin-orbit interaction, nanotip, polarization",
author = "Yuri Gorodetski and Pierfrancesco Zilio and Paolo Ponzellini and Matteo Ardini and Xavier Zambrana-Puyalto and Andrea Jacassi and Eugenio Calandrini and Denis Garoli",
note = "Publisher Copyright: {\textcopyright} 2017 SPIE.; 2017 SPIE Optics + Photonics conference on Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XV ; Conference date: 06-08-2017 Through 10-08-2017",
year = "2017",
doi = "10.1117/12.2274748",
language = "אנגלית",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Takuo Tanaka and Tsai, {Din Ping}",
booktitle = "Plasmonics",
address = "ארצות הברית",
}