Direct Growth of Optical Antennas Using E-Beam-Induced Gold Deposition |
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| Authors: | Simó Graells Srdjan A?imovi? Giorgio Volpe Romain Quidant |
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| Institution: | 1.ICFO-Institut de Ciencies Fotoniques,Castelldefels (Barcelona),Spain;2.Enginyeria La Salle,Universitat Ramon Llull,Barcelona,Spain;3.ICREA-Institució Catalana de Recerca i Estudis Avan?ats,Barcelona,Spain |
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| Abstract: | Electron beam induced deposition (EBID) is used to grow on a transparent substrate plasmonic antennas formed by gold nanorods.
We first discuss the influence of the growth parameters on the geometrical homogeneity of the structures. The optical response
of optimized rods with different aspect ratios are measured using scattering spectroscopy. The optical data show antenna resonances
in good agreement with 3D numerical simulations for pure gold antennas, validating EBID as a novel relevant technique for
the fabrication of plasmonic nanostructures. |
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