Celebration of 200 years since Sadi Carnot's Thermodynamics, 1-4 December 2024, Maison Française d'Oxford & University of Oxford, UK, Dec 2024, Oxford University, Oxford, United Kingdom. ⟨hal-04518259⟩

ART

Time arrow without past hypothesis: a toy model explanation

Pablo Arrighi, Gilles Dowek, Amélia Durbec

The laws of Physics are time-reversible, making no qualitative distinction between the past and the future—yet we can only go towards the future. This apparent contradiction is known as the ‘arrow of time problem’. Its current resolution states that the future is the direction of increasing entropy…

New Journal of Physics, 2024, 26 (11), pp.113019. ⟨10.1088/1367-2630/ad93f5⟩. ⟨hal-04856924⟩

POSTER

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⟩

THESE

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⟩

UNDEFINED

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⟩

ART

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⟩

THESE

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⟩