@inproceedings{388c4eaa96744a2db923361f6eabff78,
title = "Enhanced second-harmonic generation by single metal-insulator multilayered nanocavities with axial symmetry resonating in the near-infrared",
abstract = "We report efficient second-harmonic emission by single multilayer metal-dielectric nanocavities. Engineering the intrinsic interface-induced symmetry breaking by resonant optical absorption design, allows to achieve almost two orders of magnitude higher second-harmonic generation efficiency compared to gold nanostructures with the same geometry. We estimate a second-order nonlinear susceptibility of the order of 1 pm/V, which is comparable to widely used nonlinear crystals. We envision that our system, which combines the advantages of both plasmonic and dielectric materials, might enable the realization of composite nano-systems for an efficient multi-purpose manipulation of nonlinear optical processes at the nanoscale.",
keywords = "Metal-dielectric, Metamaterials, Multilayers, Nanocavities, Nanophotonics, Nonlinear optics, Plasmonics, Second-harmonic generation",
author = "Attilio Zilli and Tommi Isoniemi and Marzia Iarossi and Marco Finazzi and \{De Angelis\}, Francesco and Michele Celebrano and Nicol{\`o} Maccaferri",
note = "Publisher Copyright: {\textcopyright} 2021 SPIE.; Nonlinear Optics and Applications XII 2021 ; Conference date: 19-04-2021 Through 23-04-2021",
year = "2021",
doi = "10.1117/12.2589836",
language = "English",
series = "Proceedings of SPIE",
publisher = "International Society for Optics and Photonics SPIE",
editor = "Mario Bertolotti and Zayats, \{Anatoly V.\} and Zheltikov, \{Alexei M.\}",
booktitle = "Nonlinear Optics and Applications XII",
address = "United States",
}