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Toward Huygens’ sources with dodecahedral plasmonic clusters
MANY, Véronique
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Centre de Recherche Paul Pascal [CRPP]
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Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Centre de Recherche Paul Pascal [CRPP]
MANY, Véronique
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Centre de Recherche Paul Pascal [CRPP]
< Reduce
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Centre de Recherche Paul Pascal [CRPP]
Language
en
Article de revue
This item was published in
Nano Letters. 2021, vol. 21, n° 5, p. 2046-2052
American Chemical Society
English 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, ...Read more >
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.Read less <
English Keywords
Optical magnetism
Metafluid
Static light scattering
Ag nanoparticle
Meta-atoms
ANR Project
Advanced Materials by Design - ANR-10-LABX-0042
Initiative d'excellence de l'Université de Bordeaux
Initiative d'excellence de l'Université de Bordeaux
Origin
Hal imported