Publications

• Poster de conférence

Laser micromachining for packaging

Flavie Braud, Jean-Marc Boucaud, Maya Alawar, Arun Bhaskar, Victor Merupo, Steve Arscott, Emilien Peytavit, Daniel Gloria, Emmanuel Dubois

Journées Nationales sur les Technologies Emergentes en micro-nanofabrication, Nov 2024, Saint-Etienne, France. ⟨hal-04805899⟩

• Thèse

Contribution au Contrôle Non Destructif des structures par Ultrasons-Laser, Contribution to Non-Destructive Testing of structures by Laser Ultrasonics

Maha Karam

La méthode Ultrasons-Laser constitue une approche importante et intéressante pour le Contrôle Non Destructif de structures (CND) sans contact. L'objectif de cette thèse est d'optimiser cette méthode pour améliorer la détection et la caractérisation des défauts par ondes acoustiques de…, Laser Ultrasonics method is an important and interesting approach to non contact Non-Destructive Testing of structures. The aim of this thesis is to optimize this method for improving the detection and characterization of defects using surface acoustic waves, by modifying the shape of the…

Acoustique [physics.class-ph]. Université Polytechnique Hauts-de-France; Institut national des sciences appliquées Hauts-de-France; Université Libanaise (Liban), 2024. Français. ⟨NNT : 2024UPHF0042⟩. ⟨tel-05067950⟩

• Pré-publication, Document de travail

Innovative Optimization of LDI-MS Porous Silicon Substrates Using Thermometer Ions

Clara Whyte Ferreira, Bastien Cabrera-Tejera, Bernard Leyh, Romain Tuyaerts, Gilles Scheen, Yannick Coffinier, Edwin De Pauw, Gauthier Eppe

<div><p>This study presents a methodical procedure for optimizing laser desorption/ionization mass spectrometry (LDI-MS) supports using porous silicon (PSi) substrates. The approach involves the use of substituted benzyl-pyridinium salts (thermometer ions) to obtain one metric that…

2024. ⟨hal-04801584⟩

• Article dans une revue

Sub-millielectronvolt Line Widths in Polarized Low-Temperature Photoluminescence of 2D PbS Nanoplatelets

Pengji Li, Leon Biesterfeld, Lars Klepzig, Jingzhong Yang, Huu Thoai Ngo, Ahmed Addad, Tom Rakow, Ruolin Guan, Eddy Rugeramigabo, Ivan Zaluzhnyy, Frank Schreiber, Louis Biadala, Jannika Lauth, Michael Zopf

Nano Letters, 2024, ⟨10.1021/acs.nanolett.4c04402⟩. ⟨hal-04823368⟩

• Thèse

Development of novel GaN-on-Silicon Vertical power devices, Développement de nouveaux composants de puissance verticaux GaN-sur-silicium

Youssef Hamdaoui

This thesis explores the development of novel vertical GaN-on-Silicon power devices,aiming to achieve high performance in the 600-1200 V range with reliable operation,including avalanche capability. As modern society's demand for energy grows, there is anurgent need for more efficient power…, Cette thèse explore le développement de nouveaux dispositifs de puissance verticaux GaN sur silicium, visant à atteindre de hautes performances dans la gamme de 600 à 1200 V avec une fiabilité opérationnelle, incluant la capacité de claquage avalanche. Avecl'augmentation de la demande en…

Micro and nanotechnologies/Microelectronics. Université de Lille; Universiteit Gent (1817-..), 2024. English. ⟨NNT : 2024ULILN034⟩. ⟨tel-05016563⟩

• Communication dans un congrès

Infused textured polymer surface withstands harsh environment

Anne-Sophie Vaillard, Manon Saget, Flavie Braud, Maude Jimenez, Marc Lippert, Laurent Keirsbulck, Yannick Coffinier, V. Thomy

This study focuses on developing environmentally friendly, transparent, and anti-adhesive coatings named Slippery Liquid Infused Porous Surfaces (SLIPS), inspired by the carnivorous plant Nepenthes. These coatings feature oil-infused micro/nano-textures that significantly reduce liquid adhesion…

The third international conference on nature inspired surface engineering (NISE 2024), American Institute of Sciences (AIS), Nov 2024, Granada (Spain), Spain. ⟨hal-04812002⟩

• Autre publication scientifique

50 Shades of Delta Sigma

Chadi Jabbour, Antoine Frappé, Nicolas Schlegel

Delta Sigma modulators (DSM) have been around for more than 60 years. In 1962, Inose and his colleagues introduced one of the first implementations of DSM for a code modulation communication for a telemetering system. Since, during more than 6 decades, this remarkable architecture was employed to…

Tutorial in IEEE ICECS 2024, 2024. ⟨hal-05156956⟩

• Communication dans un congrès

An In-Cell Weight Update Scheme Using One-Hot Gradients for On-Chip Learning

Mathieu Chêne, Benoit Larras, Andreas Kaiser, Antoine Frappé

In the context of edge AI, the embedded models need to be retrained on-chip. The more the backward path and the calculation the gradient (two important steps during learning) are optimized by literature, the more it becomes interesting to optimize weight update operation. This work proposes to…

2024 31st IEEE International Conference on Electronics, Circuits and Systems (ICECS), Nov 2024, Nancy, France. pp.1-4, ⟨10.1109/ICECS61496.2024.10848987⟩. ⟨hal-04963089⟩

• Article dans une revue

Laser Ultrasonic Measurements for Generation and Detection of Lateral Waves in a Solid for Surface Defect Inspection

W. Djerir, T. Boutkedjirt, Mohamed Ourak, R. Halimi, A. Allag, F. Rekbi, A. Rezzoug

The first section of this study is devoted to characterizing the lateral wave generated by a laser along the air-aluminum interface. This includes determining its propagation velocity, analyzing its spectrum, and evaluating the variation of its amplitude in relation to the generation/detection…

Defektoskopiya / Russian Journal of Nondestructive Testing, 2024, 60 (8), pp.859-867. ⟨10.1134/S1061830924601934⟩. ⟨hal-04815061⟩

• Communication dans un congrès

Vertically Aligned Carbon Nanotubes-Based Passive Devices for MM-Waves Applications

Amit Kumar, Ankit Kumar, Rongtao Jaing, Dominique Baillargeat, Stephane Bila, Philippe Coquet, Beng Kang Tay

This paper investigates vertically aligned carbon nanotube (VACNT)-based interposers focusing on air-filled waveguides (AFWG) and resonant cavities for mm-wave applications. The study includes simulations, characterization, and performance evaluation of VACNT-based waveguides and cavities. The…

2024 Asia-Pacific Microwave Conference (APMC), Nov 2024, Bali, Indonesia. pp.163-165, ⟨10.1109/APMC60911.2024.10867696⟩. ⟨hal-05391963⟩