Design and top-down fabrication of metallic L-shape gap nanoantennas supporting plasmon-polariton modes

S. Panaro*, A. Toma, R. Proietti Zaccaria, M. Chirumamilla, A. Saeed, L. Razzari, Gobind Das, Carlo Liberale, F. De Angelis, Enzo Di Fabrizio

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

In this work the design, fabrication and optical characterization of a polarization-sensitive L-shape nanoantenna device are reported. Such configuration supports plasmon-polariton modes that are combinations of in-phase and out-of-phase single antenna long-axis surface plasma oscillations. In the former case charges distributions induce in the gap region an intense hot spot while in the latter one a "zero-field spot"occurs in a plasmonic mode which can be referred to a non-zero dipolar momentum.

Original languageEnglish (US)
Pages (from-to)91-95
Number of pages5
JournalMicroelectronic Engineering
Volume111
DOIs
StatePublished - Jan 1 2013

Keywords

  • Annealing
  • Electron beam lithography
  • L-shape nanoantenna
  • Plasmon-polariton modes
  • Zero-field spot

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering

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