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De nouveaux matériaux contre les nuisances sonores

Solutions isolantes ultra-efficaces et d’épaisseur très fine, les métamatériaux acoustiques développés par une équipe de chercheurs de FEMTO-ST promettent de s’affranchir du bruit et des nuisances sonores. Le projet est accompagné par le programme de prématuration du CNRS.

En effet, Les travaux de recherche menés par l’équipe d’Abdelkrim KHELIF ont permis la mise au point d’une nouvelle technologie de métamatériaux acoustiques, capable de rendre n’importe quel matériau solide ultra-efficace en terme d’isolation du bruit et des nuisances sonores. D’une épaisseur très fine, ces métamatériaux sont néanmoins d’une efficacité redoutable pour isoler des basses fréquences grâce à la génération de larges bandes fréquentielles où la propagation des ondes est interdite. L’innovation a fait l’objet de deux brevets.
Dans le cadre de la semaine du son, direction la salle sourde du laboratoire située dans les locaux de l'IUT où Aliyasin El Ayouch et Youssef Tejda testent leur invention avant le lancement de leur start-up.

  • Mengjia Wang receives the « Chinese government award 2020 »

    As a PhD student of the Optics Department of FEMTO-ST , Mengjia Wang has been recognized by the Chinese Government for his outstanding work in the field of nanophotonics and plasmonics.

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  • Laurent LARGER named Fellow 2021 of OSA

    Full professor of Physics/Optics at the University of Franche-Comté and researcher at FEMTO-ST institute, Laurent Larger is rewarded for his pioneering work on nonlinear dynamics in optoelectronics and on the development of new architectures for photonic artificial intelligence.

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  • CNRS "Proof by Image" competition

     Discover the selection of the 20 images selected by the CNRS, one of which is presented by FEMTO-ST, and vote for the "audience award" photo.

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  • Webconférences sur "e.Micronora"

    Dans le cadre de l’évènement virtuel sur les microtechniques « e.Micronora », FEMTO-ST propose des conférences en ligne le jeudi 24 septembre  au matin.

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  • Imaging quantum interference of entangled photon pairs of extremely high dimensionality

    Researchers from the Optics Department have developed an imaging device allowing the spatial and temporal resolution of the phenomenon of quantum interference between pairs of entangled photons of extremely high dimensionality.

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  • Concours posters doctorants : 11 ambassadeurs récompensés

    11 doctorants de 1ère année mis à l’honneur lors de l’Assemblée générale de FEMTO-ST du 10 juillet.

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  • Fei GAO Receives IEEE J.D. Irwin Early Career Award

    As a member of the SHARPAC team and Deputy Director of FEMTO-ST, Fei Gao has been recognized by the IEEE IES Society for his outstanding work in improving the reliability of hydrogen electric powertrains.

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  • Daniel HISSEL, winner of the CNRS 2020 Innovation Medal

    Full professor at the University of Franche-Comté, researcher at FEMTO-ST Institute and co-founder of a start-up on efficient hydrogen fuel cells, Daniel HISSEL is one of the four national winners of the CNRS 2020 Innovation Medal.

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  • A new source of infrared light thanks to fibre optic cascades

    Scientists from  FEMTO-ST Institute and McGill University (Montreal, Canada) have designed and developed in collaboration with three French companies a light source covering the entire mid-infrared wavelength range: from 2 to 10 µm.

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  • Topological crystals to guide waves on the water surface

    Topological crystals have the property of being conductive on their surface, but insulating in their volume which allows very efficient wave guidance by engineering the structure of these materials, generally arranged in a hexagonal symmetry, inspired by the graphene.

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