About

Associate Professor (HDR) at the XLIM Research Institute, University of Limoges, within the Antennas and Signals team.

Junior Member of the Institut Universitaire de France (IUF).

Adjunct assistant professor at the Center for Metamaterials and Integrated Plasmonics, Duke University.

Research Focus

Computational RF Imaging

  • Hardware-Efficient 3D Sensing: Compressive microwave and mmWave imaging, high resolution with few active channels.
  • Novel Imaging Modalities: Phaseless, polarimetric, and non-cooperative correlation imaging, physical layer compression and inverse techniques.
  • Validation & Prototyping: Bench to pilot demonstrators in imaging, NDT, and security, documented calibration and inversion, measured performance and resource budgets.
Computational RF imaging prototype

Bio-inspired Generative Design

  • Morphogenetic Metamaterials: Self-organized design of EM materials and antennas via reaction-diffusion, without centralized optimization.
  • Emergent Electromagnetic Structures: Disordered metasurfaces and hyperuniform media, tunable anisotropy and photonic bandgaps.
  • Cross-Domain Optimization: Multi-objective generative design for imaging and telecom, extensions to mechanical metamaterials.
2D anisotropic morphogenetic pattern

ANR JCJC MetaMorph and Publications provide further details.

Collaborations (non-exhaustive)

Teaching Snapshot

Teaching at the Mechanical Engineering Department at the University of Limoges Institute of Technology, covering introductions to electrical engineering, electronics, automation, mechatronics, and programming. See Teaching for course materials.

Projects

MetaMorph · ANR JCJC

Introducing Morphogenetic Electromagnetic Design

Project at a glance

  • Programme and panel: ANR JCJC, CE42 Sensors and Instrumentation
  • Grant code and host: ANR-21-CE42-0005, XLIM UMR CNRS 7252, Univ. Limoges
  • Project page: ANR project page
  • Funding: 215 240€
  • Timeline: Oct 2021 to Mar 2025. Extended to Dec 2025

Scientific scope

Within MetaMorph we introduced a bio inspired morphogenetic design framework based on local reaction diffusion rules. Rather than optimizing a global cost function, we let structures grow and self organize to meet global electromagnetic targets in radiation, frequency, and polarization. We added a spatially varying anisotropic diffusion tensor that controls orientation, spacing, and connectivity. This extra control enables polarization aware metasurfaces such as CP beams and polarization multiplexed holography. Because constraints act locally, the approach scales to large apertures, shows robustness to fabrication and disorder, and naturally produces correlated disordered or hyperuniform media for freeform waveguiding.

Science Outreach

Team and roles

  • Thomas Fromentèze. Principal investigator and Associate Professor
  • Cyril Decroze. Professor
  • Fadhila Chehami. PhD 2021 to 2024 and Post-doctoral researcher 2024 to 2025
  • Chidinma Uche. PhD 2022 to 2025
  • Raymundo de Amorim. Post-doctoral researcher 2023 to 2024
  • Eric Arnaud. Research engineer
  • Yann Marie Joseph. Engineer

Key results and impact

  • Introduction of morphogenetic metasurfaces. First use of local growth rules to reach global EM targets. Polarization aware and tolerant to fabrication.
  • Development of self-organized partially disordered bandgap systems. Correlated disorder that produces isotropic bandgaps for robust wave control.
  • Generation of freeform waveguides. Bandgap media grown by prescribing forbidden zones that trace the guide path. Curved routes supported and self organization automatically arranges the bandgap around the guide.
  • Design of radiating systems for secure identification. Morphogenetic antennas that enable free space identification with stable physical layer signatures.

Scientific output

2022
  • Principal component analysis for microwave and millimeter wave computational imaging
    T Fromentèze, O Yurduseven, P del Hougne, D R Smith
    2022 International Workshop on Antenna Technology (iWAT), Dublin. DOI 10.1109/iWAT54881.2022.9811037
  • Space time coherence processing of electromagnetic fields in complex media
    T Fromentèze, M Davy, O Yurduseven, Y Marie Joseph, C Decroze
    2022 IEEE International Symposium on Antennas and Propagation and USNC URSI Radio Science Meeting. DOI 10.1109/AP-S/USNC-URSI47032.2022.9886501
  • Compressive sensing as applied to channel characterization and beam synthesis at microwave frequencies
    O Yurduseven, M A B Abbasi, T Fromentèze, V Fusco
    2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT AP RASC), Gran Canaria. DOI 10.23919/AT-AP-RASC54737.2022.9814308
2023
  • Morphogenetic Metasurface Engineering for Computational Localization Applications
    R Amorim, C Decroze, T Fromentèze
    2023 IEEE Conference on Antenna Measurements and Applications (CAMA). DOI 10.1109/CAMA57522.2023.10352654
  • Morphogenetic Design for Band Gap Engineering
    F Chehami, C Decroze, T Fromentèze
    2023 17th European Conference on Antennas and Propagation (EuCAP), Florence. DOI 10.23919/EuCAP57121.2023.10133576
  • Morphogenetic design of self organized correlated disordered electromagnetic media
    F Chehami, C Decroze, T Pasquet, E Perrin, T Fromentèze
    ACS Photonics 10 6 1890 to 1898 2023. DOI 10.1021/acsphotonics.3c00321
  • Morphogenetic metasurfaces: unlocking the potential of Turing patterns
    T Fromentèze, O Yurduseven, C Uche, E Arnaud, D R Smith, C Decroze
    Nature Communications 14 6249 2023. DOI 10.1038/s41467-023-41775-9
  • Morphogenetic engineering of radiating metasurfaces
    T Fromentèze, O Yurduseven, E Arnaud, D R Smith, C Decroze
    International Conference on Metamaterials, Photonic Crystals and Plasmonics (META 2023), Paris. 18 to 21 July 2023
  • Morphogenetic Design of Self Organized Correlated Disordered Media
    F Chehami, C Decroze, T Fromentèze
    International Conference on Metamaterials, Photonic Crystals and Plasmonics (META 2023), Paris. 19 July 2023. Poster P24
2024
  • Morphogenetic Metasurface Antennas for Secure Identification
    R Amorim, Y Marie Joseph, C Decroze, T Fromentèze
    IEEE Antennas and Wireless Propagation Letters 2024
  • Investigating Striking Efficiency in Morphogenetic Metasurface Antennas with Low Modulation
    C N Uche, C Decroze, N Parsaei, T Fromentèze
    2024 54th European Microwave Conference (EuMC), Paris 612 to 615. DOI 10.23919/EuMC61614.2024.10732522

Publications

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Teaching

I teach at the Mechanical Engineering Department of the University of Limoges Institute of Technology. My courses focus on the introduction to electrical engineering, electronics, automation, and programming for undergraduate students.

BUT1 - Electricité - Bases du Régime DC

BUT1 - Electricité - Bases du Régime DC

Open PDF
BUT1 - Electricité - Motorisation et capteurs

BUT1 - Electricité - Motorisation et capteurs

Open PDF
BUT1 - Automatisation - Logique câblée

BUT1 - Automatisation - Logique câblée

Open PDF
BUT3 - Modélisation et asservissement

BUT3 - Modélisation et asservissement

Open PDF

Updates

IUF Nomination - Junior Chair (Fundamental)

I have been nominated to the Institut Universitaire de France (IUF) as a Junior Chair (Fundamental). The IUF is a French national institution that recognizes outstanding academics and supports their research activities.

This chair provides a reduced teaching load over six years and dedicated financial support to strengthen my research program.

IUF Member page

Guest Editor — IET Microwaves, Antennas & Propagation

Call for Papers:
Special Issue on advances at the intersection of electromagnetics, computational imaging, and intelligent metasurfaces. The issue welcomes contributions spanning novel sensing modalities, physics-informed learning, and hardware-efficient architectures.

Lead by a promising young researcher:
Dr. Mengran Zhao, Queen’s University Belfast

Read the Call For Paper

Science Outreach: Curieux! video (in French)

A short outreach video produced by Curieux! presents our ANR JCJC MetaMorph research and how morphogenetic rules shape electromagnetic metasurfaces.

Special Issue "Modern Advances in Electromagnetic Imaging and Remote Sensing: Enabling Hardware, Computational Techniques, and Machine Learning"

You can find information about a special issue for which I am the guest editor at MDPI Remote Sensing here:

Special Issue: Modern Advances in Electromagnetic Imaging

Note: Following exposure to a series of malpractices attributable to predatory journals, I decided in 2022 to sever all ties with MDPI, both as a guest editor and as an author.

EuMW EURAD Short Course 2019

We are organizing with Okan Yurduseven a 4h short course on computational imaging as part of the International Conference European Microwave Week 2019:

Modern Advances in Computational Imaging at Microwave and Millimeter-Wave Frequencies

Comput AnimEumw

Course materials are available here:

1. General Introduction to Microwave and Millimeterwave Computational Imaging; Formalisms, Systems and Image Reconstruction

- Powerpoint

- Pdf

2. New advances in computational imaging: Polarimetric imaging, phaseless imaging, and recent advances in antenna systems and k-space reconstruction techniques

- Powerpoint

- Pdf

Matlab codes to reproduce a fraction of the illustrative examples

- Conventional 2D SIMO imaging

- Computational 2D SIMO imaging

- Fourier 2D SIMO imaging

p5.js

I had fun learning to code javascript (p5.js) and processing animations thanks to Daniel Shiffman's excellent tutorials. These projects are mainly based on the representation of particles moving in vector fields defined using Perlin noise.

You can click on the following images and animations to run the corresponding script in your browser. Some of them simulate several hundred particules so they can be quite computationnaly intensive and may take a few seconds to run. Being based on random generations, each execution sould lead to different results.

Goldfish Perlin1 Perlin2 Perlin3 Gravity

Contact

If you have any questions or requests for information, please do not hesitate to contact me:

  • E-mail: Reveal email
  • Address : CIRE - Bât 2 · 12 rue Gémini · 87068 LIMOGES CEDEX 03