The institute
FEMTO's news

You are here

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.

By controlling the waves thanks to an arrangement of cubes, researchers from FEMTO-ST institute, IRPHE (University of Aix-Marseille) and Imperial College of London have for the first time obtained this phenomenon with square symmetry. Published in Applied Physics Letters and promoted by the French National Centre for Scientific Research , this work underlines that the hexagonal arrangement is not the only one able to direct the waves in at least two directions.

More informations : https://insis.cnrs.fr/fr/cnrsinfo/des-cristaux-topologiques-pour-guider-les-ondes-la-surface-de-leau

https://aip.scitation.org/doi/10.1063/1.5141850

 

  • Best student paper Award for Clément Carlé at the international conférence IFCS-EFTF2022

    This award was obtained in the "Microwave Frequency Standards" category of this major international conference in the field of time-frequency metrology, which took place in Paris from 24 to 28 April 2022.

    Read more
  • Daniel BRUNNER winner of an ERC Consolidator grant 2021

    Daniel BRUNNER is a CNRS researcher at the FEMTO-ST Institute and has been awarded a prestigious European Research Council Cosolidator Grant of 2M € for his INSPIRE project

    Read more
  • Daniel HISSEL awarded as « Fellow » of the IEEE society

    Professor in Electrical Engineering at the University of Franche-Comté and researcher at FEMTO-ST, Daniel Hissel has been awarded as  for his work on hydrogen systems.

    Read more
  • March 8, International Women's Day

    "Freedom, like Science, and Women's Rights, are fundamental issues for Humanity."

    FEMTO-ST chooses to display on this day of March 8 (also charged with the serious news of the war in Ukraine), its commitment to each of these three issues.

    Read more
  • First experimental observation of the roton effect in metamaterials

    Experiments conducted jointly by FEMTO-ST and KIT demonstrate the control of forward and backward wave propagation by adjusting the frequency.

    Read more
  • FEMTO-ST partner of the Joint Technology Unit "CAPPLAI"

    For the development of sensors to control and optimize the performance of dairy processes.                                                                                     

    Read more
  • Happy new year 2022 !

    The Management and all the members of FEMTO-ST wish you a year 2022 full of personal and professional satisfactions

    Read more
  • Safa MERAGHNI receives the PEPITE prize in the regional "Female Initiative " competition

    Her project is to create a "Smart Medical Assistant" which is an intelligent medical assistance device on a smartphone designed to help doctors in their diagnosis.

    Read more
  • IEEE ICEMS Conference : Best paper award

    Researchers from SHARPAC team/ENERGY department of FEMTO-ST institute received the Best Paper Award at the IEEE International Conference on Electrical Machines and Systems for their work on the influence of electrical conductivity on eddy-current losses in electrical machines.

    Read more
  • Joint laboratories CNRS-Companies 2021

    FEMTO-ST and AUREA Technology honored at the LAB COM CNRS event in Paris on November 29 and 30

    Read more

Pages