Reference : Helical light emission from plasmonic vortices via magnetic tapered tip
Scientific congresses, symposiums and conference proceedings : Paper published in a journal
Physical, chemical, mathematical & earth Sciences : Physics
Helical light emission from plasmonic vortices via magnetic tapered tip
Maccaferri, Nicolò mailto [Istituto Italiano di Tecnologia]
Gorodetski, Yuri []
Garoli, Denis []
Journal of Physics. Conference Series
Institute of Physics
Yes (verified by ORBilu)
United Kingdom
NANOP 2017
from 13-09-2017 to 15-09-2017
[en] We investigate an architecture where a plasmonic vortex excited in a gold surface propagates on an adiabatically tapered magnetic tip and detaches to the far-field while carrying a well-defined optical angular momentum. We analyze the out-coming light and show that, despite generally high losses of flat magnetic surface, our 3D structure exhibits high energy throughput. Moreover, we show that once a magneto-optical activity is activated inside the magnetic tip a modulation of the total power transmittance is possible.

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