2D Arrays of Hexagonal Plasmonic Necklaces for Enhanced Second Harmonic Generation.

Autor: Gómez-Tornero A; Departamento Física de Materiales and Instituto Nicolás Cabrera, Universidad Autónoma de Madrid, Madrid, 28049, Spain., Tserkezis C; Department of Photonics Engineering, Technical University of Denmark, Kgs. Lyngby, 2800, Denmark., Mateos L; Departamento Física de Materiales and Instituto Nicolás Cabrera, Universidad Autónoma de Madrid, Madrid, 28049, Spain., Bausá LE; Departamento Física de Materiales and Instituto Nicolás Cabrera, Universidad Autónoma de Madrid, Madrid, 28049, Spain., Ramírez MO; Departamento Física de Materiales and Instituto Nicolás Cabrera, Universidad Autónoma de Madrid, Madrid, 28049, Spain.
Jazyk: angličtina
Zdroj: Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2017 Apr; Vol. 29 (15). Date of Electronic Publication: 2017 Feb 10.
DOI: 10.1002/adma.201605267
Abstrakt: 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.
(© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
Databáze: MEDLINE
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