Waves

MIM

MIM is involved in research projects requiring expertise in the physics of electromagnetic wave-matter interactions. Researchers use microwave modelling and characterization tools to address complex problems in the following areas, ranging from the characterization of matter or structured materials to the study of new materials.

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In-situ measurement (French Guyana) of the vegetation dielectric properties in the framework of remote sensing space missions (SMOS, BIOMASS)
In-situ measurement (French Guyana) of the vegetation dielectric properties in the framework of remote sensing space missions (SMOS, BIOMASS)

Presentation of the waves research activities of the ZeroPower Axis

Energy harvesters are realized thanks to a dual band rectenna (0.9 GHz, 2.45 GHz) able to power a 5μW digital clock.  The system is developed on a conformable substrate (Kapton) allowing a better adaptation on the environment and an improvement in terms of portability, weight, and manufacturing cost. As a continuation the team is now focusing on developing metamaterials based antenna for WBAN applications and hybrid energy harvester coupling RF and piezoelectric

The studies concern the conception of photonic crystals (microwaves domain) and electromagnetic behavior of metamaterials

Research focuses on the design of specific equipments for the monitoring of the environment (vegetation, soil, water) using in situ, continuous and non-intrusive electromagnetic measurements. As examples, the data collected makes it possible to improve knowledge of global warming (study of permafrost) or to study the effects of water stress on vegetation. This research also makes it possible to improve the permittivity estimation models of natural environments, essential for the data treatment of space remote sensing missions (SMOS, BIOMASS).

The MIM team has recognized expertise in microwave measurement tools associated with physical propagation or electromagnetic characterization models. Dielectric spectrometry allows to deduce from permittivity other physical quantities such as humidity, salinity or the density of a medium for the nondestructive testing. The team has several measurement and analysis benches over a wide spectral range, from DC to 110 GHz, to characterize a wide range of materials (homogeneous, heterogeneous media, conductive polymers, ceramics, carbon nanotubes, hydraulic concrete, natural media).

Numerous research results are stored in a database call CASEMAT (CAractérisation et Simulation Electromagnétique de MATériaux) accessible at http://casemat.ims-bordeaux.fr/ .

Results of measurements and simulation/modelling of wave/material and wave/structure interactions are stored  (70,000 data). This tool is useful to share our results with other researchers in the framework of collaborations. Free but limited access is allowed on a guest account (login: invite, pwd: invite).

millimeter measurement bench dedicated to materials characterization
millimeter measurement bench dedicated to materials characterization
MDA research team

Presentation of the ZeroPower research activities

 

Our research works especially involve the study of waves propagation, including emission / reception, and dynamical interaction mechanisms with solid, liquid or gaseous media. The realization of ultra-sensitive and reliable microsensors together with processing electronics is an overarching goal, towards embedded and communicating systems adapted to a digital environment. All projects are carried out in close collaboration within a multidisciplinary team (electronics, microtechnology, chemistry, biology, etc.) gathering local/national/international academic and/or industrial partners.

ZeroPower teams skills

Partners

Collaborations and partners

Detection, Microwaves, Radiofrequencies

Energy Harvesting, Metamaterials

Sensors, Micro Energy, Material Wave interaction at interfaces

Wireless,Multiphysics Simulation,Electromagnetic Modelling, Remote sensing

For the various research projects underway, the IMS Bordeaux laboratory and its teams rely on strong partnerships and collaborations, which allow for the creation of a synergy of strengths and a sharing of technical and human resources

ISPA-INRAE_logo

Laboratoire ISPA-INRAE Projet SMOS

CESBIO_logo

Laboratoire CESBIO Projet SMOS & BIOMASS

Partners_MIM

Mission BIOMASS

SMOS_log

Mission SMOS

Partners_MIM 2

Département des Sciences de l'Environnement

IFV_logo

IFV Projet Vine Penetrating Radar

Agralis-logo

Agralis

cnes

Projet SMOS & BIOMASS

ECO&SOls

ECO & SOLS

INCIA_Logo

Onepoint

ZeroPower Axis skills

Propagation of surface acoustic waves in multilayer devices

Innovative resonant sensing devices: acousto-optics, HF

Integration of sensitive recognition films: polymers, hybrids, meso- and nano-structured, biomaterials

Integration with microfluidic chips

Understanding and modelling of interaction mechanisms: gas-wave, liquid-wave, solid-wave, influence of immobilisation of compounds (bacteria, viruses, toxins, heavy metals, volatile organic compounds...), effects of temperature

Development of prototype ultrasensitive platforms for early detection and dynamic monitoring

New themes: digital microfluidics, integration of measurements by lensless microscopy or optical microresonator in organic thin films, flexible and carbon-based sensors, micro-sensors and remote interrogation

News

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Members

Staff

Meet the members of the research team

Samuel TISSEYRE
Valérie VIGNERAS
Elie ZARAKET
Laurent OYHENART
Ludivine FADEL
François DEMONTOUX
Yéro DIA
Résumé en français

Le MIM est impliqué dans des projets de recherche nécessitant une expertise en physique des interactions ondes électromagnétiques-matière. Les chercheurs utilisent des outils de modélisation et de caractérisation des micro-ondes pour résoudre des problèmes complexes dans les domaines suivants, allant de la caractérisation de la matière ou des matériaux structurés à l’étude de nouveaux matériaux.

Contact our team

If you have a request or questions about the laboratory, please contact our team.