Publications

• Thèse

Conception et qualification de guides d'ondes flexibles fonctionnant dans les bandes de fréquences submillimétriques, jusqu'à 220 GHz, Design and qualification of flexible waveguides operating in the submillimeter frequency bands, up to 220 GHz

Alexandre Renau

Les ondes millimétriques et submillimétriques (fréquences térahertz), et plus précisément les bandes de fréquences E (71 - 76/81 – 86 GHz), W (75 – +110 GHz), D (110 – 170 GHz) et G (140 - 220 GHz), suscitent un intérêt croissant pour des applications dans les domaines des télécommunications, de la…, Millimeter-wave and submillimeter-wave frequencies (terahertz range), particularly the E (71–76/81–86 GHz), W (75–110 GHz), D (110–170 GHz) and G (140–220 GHz) bands, are attracting growing interest for applications in telecommunications, defense, medical, and aerospace fields. The E and W bands…

Physique [physics]. Université de Lille, 2026. Français. ⟨NNT : ⟩. ⟨tel-05471542⟩

• Thèse

Croissance de dendrites de polymère conducteur influencée par l'électroconvection et étude de leurs relaxations électrochimiques, Growth of Conducting Polymer Dendrites Influenced by Electroconvection and Study of Their Electrochemical Relaxations

Antoine Baron

En 2022, près de 62 millions de tonnes de déchets électroniques ont été produites à l'échelle mondiale, un chiffre en constante augmentation. Cette situation critique invite à repenser la manière dont les circuits électroniques sont conçus, la rigidité des dispositifs actuels les rendant…, In 2022, nearly 62 million tonnes of electronic waste were generated worldwide, a figure that continues to rise. This critical situation calls for a rethinking of how electronic circuits are designed, as the rigidity of current devices makes them rapidly obsolete and difficult to recycle. In nature…

Physique [physics]. Université de lille, 2026. Français. ⟨NNT : ⟩. ⟨tel-05472023⟩

• Article dans une revue

Long-Term Aging Effects in Electrical Devices Based on High-Quality Chemical Vapor Deposition-Grown Single-Domain WSe ₂

Yasmine Bousbaa, Xingli Wang, Seoung Bum Lim, Aníbal Pacheco-Sanchez, Dominique Vignaud, Niels Chapuis, Xavier Wallart, Philippe Coquet, Beng Kang Tay, Henri Happy, Emiliano Pallecchi

<div xmlns="http://www.tei-c.org/ns/1.0"><p>The long-term stability and scalability of layered two-dimensional (2D) materials are crucial for their practical integration into the electronic industry. While transition metal dichalcogenides, such as tungsten diselenide (WSe 2…

• HDR

[HDR] Investigation of Electrode–Electrolyte Interfaces for Electrochemical Energy Storage Applications, [HDR] Étude des interfaces électrode-électrolyte pour les applications de stockage électrochimique de l'énergie

Wan-Yu Tsai

My HDR manuscript, titled “Investigation of Electrode–Electrolyte Interfaces for Electrochemical Energy Storage Applications,” summarizes my research over the past ten years on understanding electrode/electrolyte interfaces in supercapacitors and solid-state batteries using microscopic techniques., Mon manuscrit HDR, intitulé « Étude des interfaces électrode-électrolyte pour les applications de stockage électrochimique de l’énergie », résume mes recherches menées au cours des dix dernières années sur la compréhension des interfaces électrode/électrolyte dans les supercondensateurs et les…

Physics [physics]. Université de Lille, 2026. ⟨tel-05438552⟩

• Article dans une revue

Kinematic and power analysis of a flapping-wing micro air vehicle using a Bond Graph approach

L Doan, E Cattan, S Grondel

Abstract Over the past few decades, the remarkable flight capabilities of insects have inspired extensive research into the development of flapping-wing micro air vehicles (FWMAVs). One of the primary challenges in this endeavor lies in navigating the vast spectrum of insect-inspired design options…

Engineering Research Express, 2026, 8 (1), pp.015518. ⟨10.1088/2631-8695/ae31d4⟩. ⟨hal-05473395⟩

• Article dans une revue

On-chip topological leaky-wave antenna for full-space terahertz wireless connectivity

Wenhao Wang, Yi Ji Tan, Pascal Szriftgiser, Guillaume Ducournau, Ranjan Singh

The rise of topological valley photonics heralds a new era in photonic integrated circuits featuring low-loss, compact designs with robust light transport through sharp corners. However, most demonstrations of valley photonic devices only focus on the robust waveguiding of light with suppressed…

Nature Photonics, 2026, ⟨10.1038/s41566-025-01825-8⟩. ⟨hal-05473436⟩

• Pré-publication, Document de travail

Competing effects of charge-carrier and impurity scattering limiting phonon heat conduction in heavily-doped silicon

Raja Sen, Juan Carlos Acosta Abanto, Mélanie Brouillard, Séverine Gomès, Jean-François Robillard, Alessandro Ciavatta, Lorenzo Paulatto, Nathalie Vast, Jérôme Saint-Martin, Jelena Sjakste, Pierre-Olivier Chapuis

With respect to undoped semiconductors, thermal transport by phonons is limited by two additional mechanisms when doping increases: charge-carrier and impurity scattering. Previous works provided contradicting conclusions on the dominant doping-induced scattering mechanism in silicon. In this work…

2026. ⟨hal-05451267⟩

• Article dans une revue

Spectral colour changes: a promising parameter for smart flax dew retting monitoring solutions

Suvajit Mukherjee, Dmitry Galinousky, Anne- Sophie Blervacq, Lionel Buchaillot, Steve Arscott, Sébastien Grec

Natural fibres from plants such as flax (Linum usitatissimum) are gaining interest as possible green replacements of synthetic fibres to reduce textile pollution footprints. However, the extraction-facilitating process of bast fibres from the flax stem, i.e. dew retting, is still empirically…

Computers and Electronics in Agriculture, 2026, 243, pp.111407. ⟨10.1016/j.compag.2026.111407⟩. ⟨hal-05451451⟩

• Article dans une revue

On the importance of Ni–Au–Ga interdiffusion in the formation of a Ni–Au/p-GaN ohmic contact

Jules Duraz, Hassen Souissi, Maksym Gromovyi, David Troadec, Téo Baptiste, Géraldine Hallais, Nathaniel Findling, Phuong Vuong, Rajat Gujrati, Thi May Tran, Jean-Paul Salvestrini, Maria Tchernycheva, Suresh Sundaram, Abdallah Ougazzaden, Gilles Patriarche, Sophie Bouchoule

<div xmlns="http://www.tei-c.org/ns/1.0"><p>High-resolution transmission electron microscopy (TEM) coupled to energy dispersive X-ray spectroscopy (EDX) is used to clarify the exact role of Ni-Au-Ga interdiffusion mechanisms taking place during rapid thermal annealing under an…

Journal of Applied Physics, 2026, 139 (2), ⟨10.1063/5.0295857⟩. ⟨hal-05473565⟩

• Article dans une revue

Comment on “Influence of layer thickness on time domain Brillouin scattering oscillation amplitude in multilayer films” [J. Appl. Phys. 136, 225302 (2024)]

Simon Ayrinhac, Arnaud Devos, Benoît Rufflé, Marie Foret

Picosecond acoustics allows for the probing of multilayered nanometric structures, with applications in various fields of fundamental research. In a recent study, Zhang et al.1 have reexamined the optical cavity effect that impacts time-domain Brillouin acoustic spectroscopy (TDBS) in such systems…

Journal of Applied Physics, 2026, 139, pp.016101. ⟨10.1063/5.0284277⟩. ⟨hal-05472974⟩