Edge Mode Coupling within a Plasmonic Nanoparticle

Franz-Philipp Schmidt, Harald Ditlbacher, Andreas Hohenau, Ulrich Hohenester, Ferdinand Hofer, Joachim R. Krenn

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The coupling of plasmonic nanoparticles can
strongly modify their optical properties. Here, we show that the
coupling of the edges within a single rectangular particle leads to
mode splitting and the formation of bonding and antibonding edge
modes. We are able to unambiguously designate the modes due to
the high spatial resolution of electron microscopy-based electron
energy loss spectroscopy and the comparison with numerical
simulations. Our results provide simple guidelines for for the
interpretation and the design of plasmonic mode spectra.
Original languageEnglish
Pages (from-to)5152-5155
Number of pages3
JournalNano Letters
Volume16
DOIs
Publication statusPublished - 2016

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ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

Fields of Expertise

  • Advanced Materials Science

Treatment code (Nähere Zuordnung)

  • Basic - Fundamental (Grundlagenforschung)

Cite this

Schmidt, F-P., Ditlbacher, H., Hohenau, A., Hohenester, U., Hofer, F., & Krenn, J. R. (2016). Edge Mode Coupling within a Plasmonic Nanoparticle. Nano Letters, 16, 5152-5155. https://doi.org/10.1021/acs.nanolett.6b02097