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Keywords = bimetallic three-layered nanoshells

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11 pages, 1022 KB  
Article
Geometrical Parameter Effect on Plasmonic Scattering of Bimetallic Three-Layered Nanoshells
by Ji-Bao Hu, Yu-Lin Chen, Juan Li, Ye-Wan Ma and Chuan-Cun Shu
Nanomaterials 2022, 12(21), 3816; https://doi.org/10.3390/nano12213816 - 28 Oct 2022
Cited by 4 | Viewed by 2312
Abstract
Enhanced scattering from local surface plasmon resonance by light has attracted much attention due to its special applications in sensor, cell, and biological imaging . Here, we investigate the ratio of scattering to absorption in bimetallic three-layered nanoshells with different geometrical parameters using [...] Read more.
Enhanced scattering from local surface plasmon resonance by light has attracted much attention due to its special applications in sensor, cell, and biological imaging . Here, we investigate the ratio of scattering to absorption in bimetallic three-layered nanoshells with different geometrical parameters using quasi-static theory. We show that the ratio of scattering to absorption strongly depends on the inner radius, shell thickness, middle dielectric function, and surrounding medium function. To gain insight into the effect of such geometrical parameters on the plasmonic scattering, we also provide a comparison between silver–dielectric–gold nanoshells and gold–dielectric–silver nanoshells. This work provides an alternative approach to analyze the optical properties of bimetallic three-layered nanoshells with potential applications in sensors and photo-detectors. Full article
(This article belongs to the Special Issue Metamaterials, Nanocomposites and Applications)
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