Publicaciones

• Article dans une revue

Circuit-Level Design, Modeling, and On-Wafer Characterization of a Coplanar THz Optoelectronic Mixer

S. Islam, Victor Merupo, C. Chamek, M. Sassi, Christophe Coinon, Y. Deblock, E. Okada, Sylvie Lepilliet, Flavie Braud, Q. Fornasiero, G. Di Gioia, M. Faucher, G. Ducournau, G. Loas, S. Arscott, E. Peytavit

We report the design, modeling, and on-wafer characterization of a photoconductive heterodyne mixer implemented as a true terahertz monolithic integrated circuit (TMIC). Unlike previous photoconductive heterodyne demonstrations based on antenna coupling or direct probe measurements without...

IEEE Transactions on Terahertz Science and Technology, In press, ⟨10.1109/TTHZ.2026.3742003⟩. ⟨hal-05836725⟩

• Article dans une revue

Power Performance of CMOS-Compatible 100 nm Slanted-Gate GaN HEMTs in the Ka-Band

Yassine Fouzi, Martin Doublet, Benjamin Cart, Edouard Lebouvier, Etienne Okada, Erwan Morwan, Yveline Gobil, Fanny Morisot, Khatia Benotmane, Nicolas Defrance

<div><p>This paper reports on the fabrication, physical characterization, and non-linear modeling of 100 nm slanted-gate GaN-on-silicon HEMTs processed using a CMOS-compatible platform. This technology enables state-of-the-art DC and RF performance, with a maximum drain current density...

Electronics, 2026, 15 (19), pp.4544. ⟨10.3390/electronics15194544⟩. ⟨hal-05824829⟩

• Article dans une revue

Characterization of Closely‐Located Users in Measured Cell‐Free Massive MIMO Networks

Dimitrios Georgios Nixarlidis, Eric Pierre Simon, Davy Gaillot, Valentin Picquet, Pierre Laly, Joumana Farah

<div><p>This letter investigates the spatial separability of closely-located users in cell-free massive multiple-input multiple-output (CF-mMIMO) systems using high-diversity real-world channel measurements. We evaluate the orthogonality of four closely-located users under various CF...

Electronics Letters, 2026, 62 (1), pp.e70734. ⟨10.1049/ell2.70734⟩. ⟨hal-05820914⟩

• Article dans une revue

Mo-enhanced passivity of stainless steels studied at metal/oxide interfaces by DFT atomistic modeling

Xian Huang, Dominique Costa, Vincent Maurice, Philippe Marcus

Applied Surface Science, 2026, 716, ⟨10.1016/j.apsusc.2025.164709⟩. ⟨hal-05322240⟩

• Article dans une revue

Silicon Tile-Stacking Technology for Low-Loss Sub-THz Waveguides and 3D Packaging

Arthur L. Alves, Cybelle Belem Goncalves, Frederic Gianesello, Guillaume Ducournau, Emmanuel Dubois

This paper presents the design, fabrication, and experimental characterization of low-loss, G-band (140–220 GHz) H-plane S-bend rectangular waveguides fabricated via a multi-layer stack of laser-micromachined silicon tiles. To overcome sub-millimeter manufacturing challenges, an ultrashort-pulse...

IEEE Transactions on Components, Packaging and Manufacturing Technology, In press. ⟨hal-05782059⟩

• Article dans une revue

Ultralow‐Dispersion Silicon THz Photonic Crystal Interconnects for Multichannel Datalinks

Nikhil Navaratna, Thomas Caiwei Tan, Pascal Szriftgiser, Guillaume Ducournau, Ranjan Singh

All-Silicon (Si) Terahertz (THz) interconnects are a key platform for next-generation on-chip communication, leveraging broadband photonics to connect reconfigurable electronics. Yet their potential remains largely unrealized, due to low reported data rates and a lack of systematic insight into the...

Advanced Materials, 2026, 8 p. ⟨10.1002/adma.74150⟩. ⟨hal-05705648⟩

• Pré-publication, Document de travail

SPARK-IL: Spectral Retrieval-Augmented RAG for Knowledge-driven Deepfake Detection via Incremental Learning

Hessen Bougueffa Eutamene, Abdellah Zakaria Sellam, Abdelmalik Taleb-Ahmed, Abdenour Hadid

Detecting AI-generated images remains a significant challenge because detectors trained on specific generators often fail to generalize to unseen models; however, while pixel-level artifacts vary across models, frequency-domain signatures exhibit greater consistency, providing a promising...

2026. ⟨hal-05596260⟩

• Article dans une revue

Combined Influence of Precursor Source and Solvent Type on Microstructural and Optical Properties of Spin-Coated ZnO Thin Films

Alphonse Déssoudji Gboglo, Mazabalo Baneto, Ognanmi Ako, Abdoul-Razak Ali-Tagba, Bruno Grandidier, Kekeli N’konou

The present work investigates the combined effect of precursor source and solvent on the structural, morphological, and optical properties of ZnO thin films prepared by the spin-coating technique. Three precursor sources (zinc acetate dihydrate, zinc chloride, and zinc nitrate hexahydrate) and four...

Surfaces, 2026, 9 (2), pp.50. ⟨10.3390/surfaces9020050⟩. ⟨hal-05684448⟩

• Article dans une revue

Harnessing normal-shear coupling in metabarriers for deep sub-wavelength underwater noise control

Vinícius F Dal Poggetto, Marco Miniaci

Anthropogenic underwater noise poses a significant threat to marine ecosystems, disrupting key biological functions. Common mitigation strategies include enclosing noise sources within acoustic barriers. Current designs include locally resonant absorbers, which offer narrow-band performance, and...

npj Acoustics, 2026, 2 (1), pp.20. ⟨10.1038/s44384-026-00056-7⟩. ⟨hal-05675214⟩

• Article dans une revue

Real-Time Evolution of the Mechanical Properties of Flax Stems During Post-Harvest Dew Retting: Towards Objective Retting Assessment

Ali Reda, Lionel Buchaillot, Steve Arscott

Post-harvest field dew retting is a critical stage in flax fibre production because it facilitates the separation of fibre bundles from the surrounding stem tissues. In current agricultural practice, the optimum retting stop-point is still assessed largely using empirical criteria, motivating the...

Agriculture, 2026, 16 (18), pp.1940. ⟨10.3390/agriculture16181940⟩. ⟨hal-05742620⟩