naa a22 4500 510816088 CHVBK 20180411083508.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11468-013-9556-4 doi (NATIONALLICENCE)springer-10.1007/s11468-013-9556-4 Plasmonic Fano Resonances in Single-Layer Gold Conical Nanoshells [Elektronische Daten] [Adnan Khan, Giovanni Miano] Plasmonic Fano resonances arise in symmetric single-layer conical nanoshells, which can be switched on and off by changing the polarization of the incident electric field. By breaking the symmetry, higher-order dark hybridized modes emerge in the spectrum, which couple to the superradiant bright mode and induce higher-order plasmonic Fano resonances. From a comparison with spherical nanostructures, it comes out that single-layer conical nanoshells are found to be highly capable in the generation of higher-order Fano resonances with larger modulation depths in the optical spectra. Such nanostructures are also found to offer high values of figure of merit and contrast ratio due to which they are highly suitable for biological sensors. Springer Science+Business Media New York, 2013 Fano-like resonance nationallicence Plasmons nationallicence Metallic nanoparticles nationallicence Figure of merit nationallicence σ L : Lorentzian line shape nationallicence a : Resonance amplitude nationallicence ω L : Bright mode's resonant frequency nationallicence Ω L : Bright mode's spectral width nationallicence σ F : Fano resonance line shape nationallicence ω F : Fano resonance central spectral position nationallicence Ω F : Fano resonance spectral width nationallicence q : Asymmetry parameter nationallicence b : Modulation damping parameter emerging with intrinsic losses nationallicence σ T : Total line shape nationallicence SERS : Surface-enhanced Raman spectroscopy nationallicence EIT : Electromagnetic induced transparency nationallicence CNS : Conical nanoshell nationallicence NC-CNS : Non-concentric cone nanoshell nationallicence CNG : Conventional nanoegg nationallicence FoM : Figure of merit nationallicence CR : Contrast ratio nationallicence BW : Bandwidth nationallicence FWHM : Full width at half maximum nationallicence RIU : Refractive index unit nationallicence Khan Adnan Department of Electrical Engineering, University of Naples "Federico II”, via Claudio 21, 80125, Naples, Italy aut Miano Giovanni Department of Electrical Engineering, University of Naples "Federico II”, via Claudio 21, 80125, Naples, Italy aut Plasmonics Springer US; http://www.springer-ny.com 8/3(2013-09-01), 1429-1437 1557-1955 8:3<1429 2013 8 11468 https://doi.org/10.1007/s11468-013-9556-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-013-9556-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Khan Adnan Department of Electrical Engineering, University of Naples "Federico II”, via Claudio 21, 80125, Naples, Italy aut NATIONALLICENCE 700 1- Miano Giovanni Department of Electrical Engineering, University of Naples "Federico II”, via Claudio 21, 80125, Naples, Italy aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/3(2013-09-01), 1429-1437 1557-1955 8:3<1429 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer