Plasmonic response of nanoscale spirals

  • Ziegler J
  • Haglund R
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The Archimedean spiral geometry presents a platform for exploration of complex plasmonic mechanisms and applications. Here we show both through simulations and experiment that more complex plasmonic modes with unique near-field structure and larger mode volumes can be realized within a single, topologically robust structure. In the spiral, complex polarization response, resonant interactions and symmetry-breaking features are defined by the width and spacing of the spiral tracks and by the winding number of the spiral.

Author-supplied keywords

  • Nanospiral
  • broad band absorber
  • nanomanipulator
  • nonlinear near-field structure

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  • Jed I. Ziegler

  • Richard F. Haglund

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