2D of hexagonal plasmonic necklaces for enhanced second harmonic generation

Alejandro Gómez-Tornero, Christos Tserkezis, Luis Mateos, Luisa E. Bausá, Mariola O. Ramírez

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Hexagonal plasmonic necklaces of silver nanoparticles organized in 2D superlattices on functional ferroelectric templates are fabricated in large-scale spatial regions by using a surfactant-free photo-deposition process. The plasmonic necklaces support broad radiative plasmonic resonances allowing the enhancement of second harmonic generation (SHG) at the ferroelectric domain boundaries. A 400-fold SHG enhancement is achieved at the near-UV spectral region with subsequent interest for technological applications.
Original languageEnglish
Article number1605267
JournalAdvanced Materials
Issue number15
Number of pages6
Publication statusPublished - 2017


  • Ferroelectrics
  • Silver nanoparticles
  • Plasmonic necklaces
  • Second harmonic generation


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