The MDMI team
“Materials and Devices: from Microwaves to the Infrared”

Head: Pr Annick Dégardin

The MDMI team develops new materials and devices for electronics and photonics, and designs characterization tools. It is structured along two axes:

Materials control (Head: Dr O. Meyer): Here we focus on the characterization of complex materials over a wide frequency range (from 40 Hz to 40 GHz) and a wide temperature range (from 200 K to 1000 K). Thanks to the implementation of original sensors, specific measurement cells or new instruments and the development of electromagnetic computational methods, both analog and numerical, we determine the permittivity, permeability and conductivity of materials exhibiting remarkable properties. A strong point to mention is our complete design and control of characterization and data processing chains to mastering the correlations between theoretical and experimental results. 

Terahertz imaging (Head: Pr Em. A. Kreisler): Here we deal first with oxide thin films (superconductors, semiconductors): elaboration and characterization (structural, morphological, physico-chemical and electrical transport properties). We then exploit these films to develop thermal detectors (bolometers, pyroelectric detectors) for the near and mid-infrared and the terahertz range (500 GHz to 10 THz). We finally implement these devices in imaging systems. A strong point to mention here is the complete control of the whole “from material to system” chain.