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Beaming of Helical Light from Plasmonic Vortices via Adiabatically Tapered Nanotip
[Image: see text] We demonstrate the generation of far-field propagating optical beams with a desired orbital angular momentum by using a smooth optical-mode transformation between a plasmonic vortex and free-space Laguerre–Gaussian modes. This is obtained by means of an adiabatically tapered gold t...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2016
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6660026/ https://www.ncbi.nlm.nih.gov/pubmed/27618524 http://dx.doi.org/10.1021/acs.nanolett.6b03359 |