Reference : Enhanced second-harmonic generation by single metal–insulator multilayered nanocaviti...
Scientific congresses, symposiums and conference proceedings : Paper published in a journal
Physical, chemical, mathematical & earth Sciences : Physics
Physics and Materials Science
http://hdl.handle.net/10993/47639
Enhanced second-harmonic generation by single metal–insulator multilayered nanocavities with axial symmetry resonating in the near-infrared
English
Zilli, Attilio []
Isoniemi, Tommi []
Iarossi, Marzia []
Finazzi, Marco []
De Angelis, Francesco []
Celebrano, Michele []
Maccaferri, Nicolò mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS) >]
2021
Proceedings of SPIE: The International Society for Optical Engineering
International Society for Optical Engineering
11770
117700Y
Yes
International
0277-786X
1996-756X
Bellingham
WA
SPIE Optics + Optoelectronics 2021
from 19-04-2021 to 30-04-2021
[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.
http://hdl.handle.net/10993/47639
10.1117/12.2589836
https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11770/117700Y/Enhanced-second-harmonic-generation-by-single-metalinsulator-multilayered-nanocavities-with/10.1117/12.2589836.full

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