Plasmonic sensing with FIB-milled 2D micro-arrays of truncated gold nano-pyramids

  title={Plasmonic sensing with FIB-milled 2D micro-arrays of truncated gold nano-pyramids},
  author={Filippo Pisano and Antonio Balena and Muhammad Fayyaz Kashif and Marco Pisanello and Antonio Qualtieri and Leonardo Sileo and Tiziana Stomeo and Antonella D’orazio and Massimo de Vittorio and Ferruccio Pisanello and Marco Grande},
  journal={arXiv: Applied Physics},
Plasmonic platforms are a promising solution for the next generation of low-cost, integrated biomedical sensors. However, fabricating these nanostructures often requires lengthy and challenging fabrication processes. Here we exploit the peculiar features of Focused Ion Beam milling to obtain single-step patterning of a plasmonic two-dimensional (2D) array of truncated gold nano-pyramids (TNP), with gaps as small as 17 nm. We describe the formation of plasmonic bandgaps in the arrangement of… 
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