GOMEZ-GRAÑA, Sergio; BEULZE, Aurélie Le; TRÉGUER-DELAPIERRE, Mona; MORNET, Stéphane; DUGUET, Etienne; GRANA, Eftychia; CLOUTET, Eric; HADZIIOANNOU, Georges; LENG, Jacques; SALMON, Jean-Baptiste; KRAVETS, Vasyl G.; GRIGORENKO, Alexander N.; PEYYETY, Naga A.; PONSINET, Virginie; RICHETTI, Philippe; BARON, Alexandre; TORRENT, Daniel; BAROIS, Philippe

doi:10.1039/C6MH00270F

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GOMEZ-GRAÑA, Sergio
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

BEULZE, Aurélie Le
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

TRÉGUER-DELAPIERRE, Mona
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Ce document a été publié dans

Materials Horizons. 2016-06-07, vol. 3, n° 6, p. 596-601

the Royal Society of Chemistry

Résumé en anglais

Hierarchical self-assembly arranges nanostructures at different length scales. It gradually becomes an effective method of fabricating artificial metamaterials from composite nanostructures tailored for a particular response. Hierarchical self-assembly overcomes shortcomings of "top-down" methods by significantly reducing fabrication time and making it possible to form bulk materials. Here we report an application of hierarchical self-assembly of metal nanoparticles for the creation of the first isotropic optical metamaterial with strong artificial magnetism in blue light. We have used colloidal self-assembly to create artificial "nanomolecules" that generate the desired magnetic response and microfluidic self-assembly to produce a bulk metastructure. We demonstrate that the magnetic response of the final material is accurately described by an isotropic magnetic permeability that satisfies the principle of locality. Our approach unlocks the fabrication of large volumes of composite nanomaterials. Moreover, the spatial disorder inherent to this "bottom-up" method holds the key to solving the non-locality problem. The technique can be readily extended to the future generations of low-loss optical metamaterials made of dielectric nano-blocks to bypass the limitations of optical losses associated with plasmonic resonances in noble metals.< Réduire

DOI

http://dx.doi.org/10.1039/C6MH00270F

Project ANR

Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003

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Importé de hal

Unités de recherche

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026