Enhanced Third-Harmonic Generation from a Metal/Semiconductor Core/Shell Hybrid Nanostructure

Omri Bar-Elli, Eran Grinvald, Noga Meir, Lior Neeman, Dan Oron

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Nonlinear optical processes can be dramatically enhanced via the use of localized surface plasmon modes in metal nanoparticles. Here we show how more elaborate structures, based on shape-controlled Au/Cu2O core/shell nanostructures, enable further enhancement of the nanoparticle third-harmonic scattering cross-section. The semiconducting component takes a twofold role in this structure, both providing a knob to tune the resonant frequency of the gold plasmon and providing resonant enhancement by virtue of its excitonic states. The advantages and deficiencies of using such core/shell metal/semiconductor structures are discussed.

Original languageEnglish
Pages (from-to)8064-8069
Number of pages6
JournalACS nano
Volume9
Issue number8
DOIs
Publication statusPublished - Aug 25 2015

Keywords

  • core/shell nanoparticles
  • plasmonics
  • third-harmonic generation

ASJC Scopus subject areas

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

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