http://www.cnr.it/ontology/cnr/individuo/prodotto/ID295568
Tunable and Reconfigurable Plasmonic-Photonic Resonances in Hybrid Metallo-Dielectric Quasicrystals for Biosensing (Contributo in atti di convegno)
- Type
- Label
- Tunable and Reconfigurable Plasmonic-Photonic Resonances in Hybrid Metallo-Dielectric Quasicrystals for Biosensing (Contributo in atti di convegno) (literal)
- Anno
- 2011-01-01T00:00:00+01:00 (literal)
- Alternative label
Crescitelli, A.; Ricciardi, A.; Consales, M.; Cutolo, A.; Galdi, V.; Cusano, A.; Esposito, E.; Granata, C. (2011)
Tunable and Reconfigurable Plasmonic-Photonic Resonances in Hybrid Metallo-Dielectric Quasicrystals for Biosensing
in Sensors, 2011 IEEE
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Crescitelli, A.; Ricciardi, A.; Consales, M.; Cutolo, A.; Galdi, V.; Cusano, A.; Esposito, E.; Granata, C. (literal)
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- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- University of Sannio;
CNR-ICIB (literal)
- Titolo
- Tunable and Reconfigurable Plasmonic-Photonic Resonances in Hybrid Metallo-Dielectric Quasicrystals for Biosensing (literal)
- Abstract
- We report the first evidence of out-of-plane resonances in hybrid metallo-dielectric quasi-crystal nanostructures composed of metal-backed aperiodically-patterned low-contrast dielectric layers. We numerically and experimentally characterize these resonant phenomena and investigate the underlying physics. We show that, by comparison with standard periodic structures, a richer spectrum of resonant modes may be excited. Such modes are characterized by a distinctive plasmonic or photonic behavior, discriminated by their field distribution and dependence on the metal thickness. The response is accurately predicted via computationally-affordable periodic-approximant-based numerical modeling. Finally, we explore the structure functionalization via nanosized high refractive index overlays, for resonance tuning and quality-factor (Q) enhancement, as well as its surface sensitivity to deposition of nanolayers of materials mimicking bio-molecular binding. Overall, we excite resonant modes, with state-of-the-art quality factors and sensing/tuning efficiencies, of interest for developing novel optical devices for communications and sensing applications. (literal)
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