Generation of Subwavelength Plasmonic Nanovortices via Helically Corrugated Metallic Nanowires
نویسندگان
چکیده
منابع مشابه
Generation of Subwavelength Plasmonic Nanovortices via Helically Corrugated Metallic Nanowires
We demonstrate that plasmonic helical gratings consisting of metallic nanowires imprinted with helical grooves or ridges can be used efficiently to generate plasmonic vortices with radius much smaller than the operating wavelength. In our proposed approach, these helical surface gratings are designed so that plasmon modes with different azimuthal quantum numbers (topological charge) are phase-m...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2015
ISSN: 2045-2322
DOI: 10.1038/srep13089