Nanoelectronics research team - IMS Bordeaux Laboratory

Terahertz

The objective of the TERA (Nanoelectronics) group is to investigate Terahertz technologies and systems by 2025-30. To this end, the group is investing in the deployment of new experimental techniques for multi-physics characterization, new methodologies for describing components, sources and systems for terahertz applications. Terahertz radiation has excellent potential to help the understanding of fundamental and exciting new challenges at the interface between physics, optics , electronics and the life sciences but it is remained largely unexplored.

This light radiation located in this range of the electromagnetic spectrum was very difficult to generate until quite recently. Since the 1990s new developments in semiconductor physics and femtosecond laser technology have made it possible to provide light at terahertz frequencies.

The main themes developed within the TERA group are:

THz-Photonics:

THz-Electronics

Presentation of the nanoelectronics research theme

The research of the Tera group concerns components for “terahertz” (HBT SiGe and III-V, FET, Diodes) and terahertz systems such as sources, detectors, mixers, imagers. The key themes are:

Electro-optical characterization, microwave characterization and compact modelling.

Development of high frequency measurement methodology (on wafer S parameter measurement up to 750 GHz )
Very high frequency and electro-thermal modelling of SiGe HBTs

The use of “Terahertz” spectrometers cleverly completes these means of analysis,

The development of new sources (ONL, Radar, Integrated Silicon),

THz Spectroscopy and imaging.

Nanoelectronics skills

Integration of optics and THz sources with waveguide : Simulation , experiment

Holographic, tomographic and diffusive imaging : 3D Reconstruction,3D imaging and data processing

Spectroscopy and chemometrics : characterization of the dielectric response of mono-multilayers materials

Multispectral time domain approach : TDR on VNA and THz measurement technique, the S-parameter measurements on photoactive components.

Non-linear optics serving optical and THz sources and detector : Conception , Simulation , Experiment

Radar and SAR techniques with mm and sub mm waves

TDS source matrix of antenna

Physics of SiGe HBT

Partners

Collaborations and partners

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