Publicaciones

• 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⟩

• Chapitre d'ouvrage

Chapter 2. Electromagnetic wave to material interaction and microwave materials measurements

Kamel Haddadi, Malgorzata Celuch

Electromagnetic Interference Shielding Materials, Electromagnetic Interference Shielding Materials Graphene-Based Composites and Beyond Woodhead Publishing Series in Electronic and Optical Materials, Elsevier, pp.3-28, 2026, ISBN: 978-0-443-36630-7. ⟨10.1016/B978-0-443-36630-7.00004-1⟩. ⟨hal-05619825⟩

• 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⟩

• Chapitre d'ouvrage

Path eigenfunction localization and sensing

Abdellatif Akjouj, Housni Al-Wahsh, Eman Abdel-Ghaffar, Madiha Amrani, Leonard Dobrzyński

Leonard Dobrzynski. Sensing, Elsevier, pp.39-70, 2026, Interface Transmission Tutorial Book Series, Sensing Long-Lived Resonances, 978-0-443-32944-9. ⟨10.1016/B978-0-44-332944-9.00013-X⟩. ⟨hal-05569940⟩

• Article dans une revue

0.53 mΩ.cm 2 /592 V High Breakdown Voltage GaN-on-Sapphire Schottky Diodes Without Edge Termination

Hugo Bouillaud, Beatriz Orfao, Etienne Okada, Yannick Roelens, Malek Zegaoui, Mohammed Zaknoune

In this letter, we report high-performance Pt/GaN quasi-vertical Schottky barrier diodes on sapphire substrate. With a 5 μm drift layer and a highly controlled fabrication process, the devices demonstrate an extremely low on-resistance of 0.53 mΩ.cm² while exhibiting a high breakdown voltage of 592...

IEEE Electron Device Letters, 2026, pp.1-1. ⟨10.1109/LED.2026.3652934⟩. ⟨hal-05484994⟩

• 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⟩

• Article dans une revue

Far-Field Terahertz Spectroscopy of a Subwavelength Single Planar Meta-Atom

Surya Revanth Ayyagari, Simonas Indrišiūnas, Guillaume Ducournau, Vytautas Janonis, Irmantas Kašalynas

Accurate measurements of light-matter interactions at subwavelength scales are critical for advancing nanophotonic and quantum optical technologies. In this paper, we present the far-field terahertz (THz) spectroscopy of a single planar meta-atom of subwavelength dimensions embedded within a square...

Applied Sciences, 2026, 16 (10), pp.4608. ⟨10.3390/app16104608⟩. ⟨hal-05663529⟩

• Article dans une revue

Performance Evaluation of Cell-Free Massive MIMO Systems Based on Mixed Indoor/Outdoor Measurements

Eric Pierre Simon, Joumana Farah, Valentin Picquet, Pierre Laly

This paper presents an extensive investigation into the performance of cell-free massive multiple-input multiple-output (CF-mMIMO) systems using empirical channel data. We first detail an original measurement campaign conducted in a mixed indoor/outdoor campus environment, providing a realistic...

IEEE Access, 2026, 14, pp.58453-58465. ⟨10.1109/ACCESS.2026.3682917⟩. ⟨hal-05602429⟩

• Article dans une revue

Low-loss, 1-m long length, silica based hollow-core THz waveguide operating at 1 THz

Georges Humbert, Jean-Louis Auguste, Guillaume Ducournau, Jean-Francois Lampin

A hollow-core THz waveguide composed of silica capillaries is proposed for low-loss THz wave propagation. Silica, despite its large absorption coefficient at THz frequencies, offers numerous fabrication advantages for developing THz waveguides. A numerical study on the anti-resonant guiding...

IEEE Transactions on Terahertz Science and Technology, 2026, pp.1-7. ⟨10.1109/TTHZ.2026.3705971⟩. ⟨hal-05697920⟩

• Article dans une revue

FragCast: A Scalable BLE-based OTA Framework for Constrained IoT Devices

Ebenezer Djafsia Souboura, Damien Sambo, Paul Dayang, Michel Vianney Komguep, Laurent Clavier

The proliferation of constrained Internet of Things (IoT) devices requires scalable Over-the-Air (OTA) firmware update mechanisms. Conventional approaches, predominantly based on one-to-one communication such as Bluetooth Low Energy (BLE) Device Firmware Update (DFU), suffer from a scalability...

IET Control Theory and Applications, 2026, 16 (1), pp.e70031. ⟨10.1049/wss2.70031⟩. ⟨hal-05600346⟩