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Toward Huygens' Sources with Dodecahedral Plasmonic Clusters.
Lermusiaux, Laurent; Many, Véronique; Barois, Philippe; Ponsinet, Virginie; Ravaine, Serge; Duguet, Etienne; Tréguer-Delapierre, Mona; Baron, Alexandre.
Afiliação
  • Lermusiaux L; Université de Bordeaux, CNRS, ICMCB, Bordeaux INP, UMR 5026, Pessac 33600, France.
  • Many V; Université de Bordeaux, CNRS, ICMCB, Bordeaux INP, UMR 5026, Pessac 33600, France.
  • Barois P; Université de Bordeaux, CNRS, CRPP, UMR 5031, Pessac 33600, France.
  • Ponsinet V; Université de Bordeaux, CNRS, CRPP, UMR 5031, Pessac 33600, France.
  • Ravaine S; Université de Bordeaux, CNRS, CRPP, UMR 5031, Pessac 33600, France.
  • Duguet E; Université de Bordeaux, CNRS, CRPP, UMR 5031, Pessac 33600, France.
  • Tréguer-Delapierre M; Université de Bordeaux, CNRS, ICMCB, Bordeaux INP, UMR 5026, Pessac 33600, France.
  • Baron A; Université de Bordeaux, CNRS, ICMCB, Bordeaux INP, UMR 5026, Pessac 33600, France.
Nano Lett ; 21(5): 2046-2052, 2021 Mar 10.
Article em En | MEDLINE | ID: mdl-33599504
ABSTRACT
The design and chemical synthesis of plasmonic nanoresonators exhibiting a strong magnetic response in the visible is a key requirement to the realization of efficient functional and self-assembled metamaterials. However, novel applications like Huygens' metasurfaces or mu-near-zero materials require stronger magnetic responses than those currently reported. Our numerical simulations demonstrate that the specific dodecahedral morphology, whereby 12 silver satellites are located on the faces of a nanosized dielectric dodecahedron, provides sufficiently large electric and magnetic dipolar and quadrupolar responses that interfere to produce so-called generalized Huygens' sources, fulfilling the generalized Kerker condition. Using a multistep colloidal engineering approach, we synthesize highly symmetric plasmonic nanoclusters with a controlled silver satellite size and show that they exhibit a strong forward scattering that may be used in various applications such as metasurfaces or perfect absorbers.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2021 Tipo de documento: Article