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Enhanced second-harmonic generation by single metal–insulator multilayered nanocavities with axial symmetry resonating in the near-infrared
Zilli, Attilio; Isoniemi, Tommi; Iarossi, Marzia et al.
2021In Proceedings of SPIE: The International Society for Optical Engineering, 11770, p. 117700
Peer reviewed
 

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Abstract :
[en] 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.
Disciplines :
Physics
Author, co-author :
Zilli, Attilio
Isoniemi, Tommi
Iarossi, Marzia
Finazzi, Marco
De Angelis, Francesco
Celebrano, Michele
Maccaferri, Nicolò ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS)
External co-authors :
yes
Language :
English
Title :
Enhanced second-harmonic generation by single metal–insulator multilayered nanocavities with axial symmetry resonating in the near-infrared
Publication date :
2021
Event name :
SPIE Optics + Optoelectronics 2021
Event date :
from 19-04-2021 to 30-04-2021
Audience :
International
Journal title :
Proceedings of SPIE: The International Society for Optical Engineering
ISSN :
1996-756X
Publisher :
International Society for Optical Engineering, Bellingham, United States - Washington
Volume :
11770
Pages :
117700Y
Peer reviewed :
Peer reviewed
Focus Area :
Physics and Materials Science
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