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2D Arrays of Hexagonal Plasmonic Necklaces for Enhanced Second Harmonic Generation
Author(s) -
GómezTornero Alejandro,
Tserkezis Christos,
Mateos Luis,
Bausá Luisa E.,
Ramírez Mariola O.
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201605267
Subject(s) - plasmon , materials science , ferroelectricity , template , second harmonic generation , nanotechnology , hexagonal crystal system , nanoparticle , optoelectronics , optics , laser , crystallography , physics , chemistry , dielectric
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.