| Reference : Enhanced Nonlinear Emission from Single Multilayered Metal−Dielectric Nanocavities Re... |
| Scientific journals : Article | |||
| Physical, chemical, mathematical & earth Sciences : Physics | |||
| Physics and Materials Science | |||
| http://hdl.handle.net/10993/45515 | |||
| Enhanced Nonlinear Emission from Single Multilayered Metal−Dielectric Nanocavities Resonating in the Near-Infrared | |
| English | |
Maccaferri, Nicolò  [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS) >] | |
| Zilli, Attilio [] | |
| Isoniemi, Tommi [] | |
| Ghirardini, Lavinia [] | |
| Iarossi, Marzia [] | |
| Finazzi, Marco [] | |
| Celebrano, Michele [] | |
| De Angelis, Francesco [] | |
| 2021 | |
| ACS Photonics | |
| American Chemical Society | |
| 8 | |
| 2 | |
| 512-520 | |
| Yes (verified by ORBilu) | |
| International | |
| 2330-4022 | |
| 2330-4022 | |
| DC | |
| [en] metal−dielectric nanocavities ; nonlinear optics ; second-harmonic generation ; third-harmonic generation ; multilayer ; near-infrared | |
| [en] Harmonic generation mechanisms are of great interest in nanoscience and
nanotechnology, since they allow generating visible light by using near-infrared radiation, which is particularly suitable for its countless applications in bionanophotonics and optoelectronics. In this context, multilayer metal−dielectric nanocavities are widely used for light confinement and waveguiding at the nanoscale. They exhibit intense and localized resonances that can be conveniently tuned in the near-infrared and are therefore ideal for enhancing nonlinear effects in this spectral range. In this work, we experimentally investigate the nonlinear emission properties of multilayer metal−dielectric nanocavities. By engineering their absorption efficiency and exploiting their intrinsic interface-induced symmetry breaking, we achieve an almost 2 orders of magnitude higher second-harmonic generation efficiency compared to gold nanostructures featuring the same geometry and optical resonant behavior. In particular, while both the third-order nonlinear susceptibility and conversion efficiency are comparable with those of the Au nanoresonators, we estimate a second-order nonlinear susceptibility of the order of 1 pm/V, which is comparable with that of typical nonlinear crystals. We envision that our system, which combines the advantages of both plasmonic and dielectric materials, might enable the realization of composite and multifunctional nanosystems for the efficient manipulation of nonlinear optical processes at the nanoscale. | |
| http://hdl.handle.net/10993/45515 | |
| 10.1021/acsphotonics.0c01500 | |
| FnR ; FNR13624497 > Nicolò Maccaferri > ULTRON > Ultrafast Coherent Hybridization Of Photons And Spins In Multi-functional Magnetoplasmonic Metamaterials > 01/01/2020 > 31/12/2022 > 2019 |
| File(s) associated to this reference | ||||||||||||||
|
Fulltext file(s):
| ||||||||||||||
All documents in ORBilu are protected by a user license.
