title: Plasmonic oligomers in cylindrical vector light beams.
abstract: We investigate the excitation as well as propagation of magnetic modes in plasmonic nanostructures. Such structures are particularly suited for excitation with cylindrical vector beams. We study magneto-inductive coupling between adjacent nanostructures. We utilize high-resolution lithographic techniques for the preparation of complex nanostructures consisting of gold as well as aluminium. These structures are subsequently characterized by linear optical spectroscopy. The well characterized and designed structures are afterwards studied in depth by exciting them with radial and azimuthally polarized light and simultaneously measuring their plasmonic near-field behavior. Additionally, we attempt to model and simulate our results, a project which has, to the best of our knowledge, not been attempted so far.
authors: 4th Physics Institute and Research Center SCoPE, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany ; Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany.
authors: Mario
authors: M
authors: Hentschel
authors: Jens
authors: J
authors: Dorfmüller
authors: Harald
authors: H
authors: Giessen
authors: Sebastian
authors: S
authors: Jäger
authors: Andreas M
authors: AM
authors: Kern
authors: Kai
authors: K
authors: Braun
authors: Dai
authors: D
authors: Zhang
authors: Alfred J
authors: AJ
authors: Meixner
keywords: near-field microscopy; oligomers; plasmons; radial and azimuthal polarization
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