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

RÉESPIRATION Project: When art breathes to the rhythm of science and medicine
An interactive work of art born of an unprecedented dialogue between artists, carers and researchers to raise awareness of breathing and its calming power
Read more
Fiber optic sensors: a technological leap thanks to quantum photon counting
Researchers at FEMTO-ST have extended the range of fiber-optic temperature sensors to 150 kilometers, using photonic detection technology derived from quantum physics.
Read more
Two FEMTO-ST PhD students win awards at the IFCS-EFTF 2025 international conference
Their innovative work paves the way for new environmental monitoring devices and a new generation of atomic micro-clocks.
Read more
Detecting hydrocarbon pollutants in groundwater
A major environmental and health challenge taken up by FEMTO-ST researchers working with TotalEnergies
Read more
3 tenure track position at FEMTO-ST
In 3 of its strategic research priorities: micro-nanotechnologies, artificial intelligence and sustainable development.
Read more
FEMTO-ST is launching its support program for MSCA Postdoctoral Fellowships applications !
The Boostcamp is a two-day intensive workshop aimed at helping international researchers develop a strong application for the 2025 Marie Skłodowska-Curie Postdoctoral Fellowship.
Read more
Using artificial intelligence to collect agricultural data
ANR OCOD project combines intelligent sensors, drones and optimization for data collection in constrained natural environments
Read more
A European project to prevent perineal tears
PELVITRACK offers a predictive tool for patricians as part of an interdisciplinary European consortium involving FEMTO-ST.
Read more
Best Paper Award at BIOSTEC 2025
The work of Ouassim Boukhennoufa and his team combines AI and image optimization in nuclear medicine for more accurate and earlier detection of parathyroid anomalies.
Read more
Kagomé structures for quantum technologies
Quantum technologies open up promising prospects, but require the development of new materials with remarkable properties.
Read more