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Affichage de 171 à 180 sur 16314

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

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 oxygen atmosphere of a Ni-Au/p-GaN contact. It is shown that...

Journal of Applied Physics, 2026, 139 (2), pp.025102. ⟨10.1063/5.0295857⟩. ⟨hal-05473565v2⟩

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⟩

Communication dans un congrès

DeeCLIP: A Robust and Generalizable Transformer-Based Framework for Detecting AI-Generated Images

Mamadou Keita, Wassim Hamidouche, Hessen Bougueffa Eutamene, Abdelmalik Taleb-Ahmed, Abdenour Hadid

This paper introduces DeeCLIP, a novel framework for detecting AI-generated images using CLIP-ViT and fusion learning. Despite significant advancements in generative models capable of creating highly photorealistic images, existing detection methods often struggle to generalize across different...

Advanced Concepts for Intelligent Vision Systems (ACIVS 2025), Jun 2025, Tokyo, Japan. pp.146-158, ⟨10.1007/978-3-032-07343-3_12⟩. ⟨hal-05473197⟩

Article dans une revue

Measurement of magnetic loss in ferromagnetic lamella using high sensitivity piezo-magnetic surface acoustic wave sensor

Othmane Marbouh, Gaetan Sanchez, Aurélien Mazzamurro, Mohamed Boutghatin, Olivier Bou Matar, Yannick Dusch, Romain Viard, Aymen Ammar, Philippe Pernod, Nicolas Tiercelin, Abdelmounaim Tounzi, Abdelkader Benabou, Abdelkrim Talbi

Magnetic field sensors combining surface acoustic waves (SAW) and magnetostrictive thin films have shown promising sensitivity in laboratory studies, but their translation into real-world applications has remained limited. In this work, we report the first practical deployment of a shear-horizontal...

Sensors and Actuators A: Physical , In press, ⟨10.1016/j.sna.2026.117973⟩. ⟨hal-05617220⟩

Article dans une revue

Development and validation of a 2D Mason model for ultrasonic transducer arrays: A simplified approach simulating crosstalk and dissipation mechanisms

Anouar Boujenoui, Abdelmajid Bybi, Hayat Reskal, Hassna Khalfi, Lahoucine Elmaimouni, Anne-Christine Hladky-Hennion

Piezoelectric elements arranged in 1D or 2D configurations are commonly used in ultrasonic transducer arrays for medical imaging and non-destructive testing (NDT) applications. These arrays are usually modeled using complex 2D or 3D numerical methods. Based on the equivalent circuit approach...

Applied Acoustics, 2026, 241, pp.110991. ⟨10.1016/j.apacoust.2025.110991⟩. ⟨hal-05214072⟩

Chapitre d'ouvrage

Chapter 15 - Elastic wave engineering in piezoelectric materials: toward next-generation biosensors

Abdelkrim Talbi, Axel Leschiutta, Lei Oscar Cuasay, Carmen Lorena Manzanares, Shreshtha Mishra, Mohand Salah Moussa, Vincent Mortet, Othmane Marbouh, Mohamed Boutghatin, El Houssaine El Boudouti, Philippe Pernod, Bahram Djafari-Rouhani, Olivier Bou Matar

Biosensing applications have significantly benefited from advances in phononic materials and acoustic wave technologies. This chapter explores the use of phononic metasurfaces (PnMs) and phononic crystals (PnCs) to enhance the performance of surface acoustic wave (SAW) biosensors. By leveraging...

Sensing Long-Lived Resonances, Elsevier, pp.323-355, 2026, ⟨10.1016/B978-0-44-332944-9.00025-6⟩. ⟨hal-05576865⟩

Article dans une revue

PCB-Based Hybrid Series/Corporate-Fed 4 × 4 D-Band Phased Array With Wide-Angle Scanning

Kamil Yavuz Kapusuz, Samuel Rimbaut, Siddhartha Sinha, Joris van Driessche, Ad Reniers, A. Bart Smolders, Pascal Szriftgiser, Guillaume Ducournau, Hendrik Rogier, Sam Lemey

Sixth generation (6G) wireless networks are envisioned to include aspects of energy footprint reduction (sustainability), besides those of network capacity and connectivity, at the design stage. This paradigm change requires radically new physical layer technologies. Notably, the integration of...

IEEE Antennas and Wireless Propagation Letters, 2026, 25 (1), pp.64-68. ⟨10.1109/LAWP.2025.3616614⟩. ⟨hal-05508726⟩

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, In press, ⟨10.1049/wss2.70031⟩. ⟨hal-05600346⟩

Article dans une revue

High-Sensitivity Love Wave SAW Sensors with Composite Guiding Layer and Phononic Crystal Cavity

A. Leschiutta, G. Eybert-Bouillier, Othmane Marbouh, O. Bou-Matar, V. Mortet, A. Talbi

In Love-wave-based biosensors, the most widely used architecture is the delay-line configuration, in which the sensing function is achieved by functionalizing the acoustic propagation path. This approach offers high robustness and compatibility with liquid-phase operation, making it particularly...

IEEE Sensors Journal, 2026, pp.1-1. ⟨10.1109/JSEN.2026.3702005⟩. ⟨hal-05658423⟩

Article dans une revue

Structural and electronic signatures of stacking and intralayer transitions in epitaxial bilayer WSe2 on GaP(111)B

Meryem Bouaziz, Samir El Masaoudi, Aymen Mahmoudi, Niels Chapuis, Mathieu Silly, Gilles Patriarche, Iann Gerber, Julien Chaste, Fabrice Oehler, Xavier Wallart, Abdelkarim Ouerghi

Two-dimensional materials from the transition metal dichalcogenides family host multiple crystal phases and stacking configurations that strongly affect their electronic properties. Here, we investigate the structural and electronic phase evolution of epitaxial bilayer WSe2 grown by molecular beam...

Nanoscale, 2026, 18 (26), pp.13969-13978. ⟨10.1039/d6nr01013j⟩. ⟨hal-05687513⟩