Publications

• Communication dans un congrès

Calculs de Structures de Bandes Complexes de Cristaux Phononiques 2D Fluide/Solide par la Méthode des Eléments Finis à Fréquence Réelle Fixée pour le Développement de Solutions de Réduction du Bruit Anthropique Sous-Marin

Juliette Kessler, Charles Croënne, Romain Jan, Monique Pouille, Anne-Christine Hladky-Hennion

Le bruit généré par les activités maritimes offshore est une préoccupation importante en raison de son impact sur les espèces marines. Pour atténuer ces nuisances sonores, la conception de métamatériaux acoustiques offre une solution prometteuse. Ces matériaux permettent de manipuler la propagation…

CFA 2025 - 17e Congrès Français d'Acoustique, Société Française d'Acoustique (SFA), Apr 2025, Paris, France. ⟨hal-05365057⟩

• Ouvrages

An Intellectual History of Science in the Renaissance. Cultural and Fundamental Frameworks. Vol. 1

Raffaele Pisano

Springer, In press. ⟨hal-04859393⟩

• Article dans une revue

Strategies to achieve efficiencies of over 19% for organic solar cells

Xingchi Xiao, Malika Chalh, Zhi Rong Loh, Esther Mbina, Tao Xu, Roger C. Hiorns, Yujia Li, Maloy Das, Kekeli N'Konou, Leonard W T Ng

Organic solar cells are a promising system for generating clean energy. Recent advancements, particularly in non-fullerene acceptors such as Y6 and its derivatives, along with the development of innovative polymer donors, have significantly enhanced the power conversion efficiency of organic solar…

Cell Reports Physical Science, 2025, 6 (1), pp.102390. ⟨10.1016/j.xcrp.2024.102390⟩. ⟨hal-04932307⟩

• Article dans une revue

Thermal Enhancement of GaN Schottky Diodes Annealed at 600°C for High Power and High Temperature RF Applications

Beatriz Orfao, Amir Al Abdallah, Hugo Bouillaud, Guillaume Ducournau, Yannick Roelens, Malek Zegaoui, Mohammed Zaknoune

In this paper, we report the investigation of the thermal enhancement and the behavior of GaN Schottky diodes grown by metal organic chemical vapor deposition (MOCVD) on sapphire substrates for RF power applications and their potential to operate under extreme temperature. The Schottky barrier…

Electronics Letters, 2025, 61 (1), pp.e70307. ⟨10.1049/ell2.70307⟩. ⟨hal-05149241⟩

• Article dans une revue

High Round-Trip Gain Piezoelectric-Capacitive Hybrid Micromachined Ultrasonic Transducer Based on Anodic Bonding Technology

Yan Wang, Wei-Jiang Xu, Ning Lv, Tao Wu, Jia Zhou, Junyan Ren

In this work, a piezoelectric-capacitive hybrid micromachined ultrasonic transducer (HMUT) with a high round-trip gain was developed to achieve superior pulse-echo imaging performance. Initially, an equivalent circuit model (ECM) and a finite element model (FEM) were constructed to design and…

IEEE Sensors Journal, 2025, pp.1-1. ⟨10.1109/JSEN.2025.3552403⟩. ⟨hal-05042499⟩

• Article dans une revue

ScAlN/GaN-on-Si (111) HEMTs for RF applications

Seif El Whibi, Nagesh Bhat, Yassine Fouzi, Nicolas Defrance, Jean-Claude de Jaeger, Zahia Bougrioua, Florian Bartoli, Maxime Hugues, Yvon Cordier, Marie Lesecq

ScAlN is a promising barrier material for next generation RF high electron mobility transistors, outperforming AlGaN thanks a higher 2-dimensional electron gas (2DEG) density and a thinner barrier with a lower lattice mismatch with GaN. A sub-10 nm barrier ScAlN/GaN heterostructure, grown by…

Applied Physics Express, 2025, 18 (4), pp.046501. ⟨10.35848/1882-0786/adc5db⟩. ⟨hal-05008937⟩

• Article dans une revue

Using Synapse Saturation in Spiking Neural Networks for Wake Up Receivers in Internet of Things Networks

Guillaume Marthe, Claire Goursaud, Laurent Clavier

Energy consumption remains a predominant constraint in numerous Internet of Things (IoT) applications, as microcontrollers typically exhibit excessively high power consumption. To address this issue, novel circuit designs have been introduced, and the utilization of spiking neurons and analog…

IEEE Internet of Things Journal, 2025, pp.1-1. ⟨10.1109/JIOT.2025.3599668⟩. ⟨hal-05229337⟩

• Communication dans un congrès

Inverted BER Trends for Energy-Detected GRSM-MQAM Massive MIMO Downlink

Oshin Daoud, Haïfa Farès, Yahia Medjahdi, Laurent Clavier, Amor Nafkha

This work investigates Generalized Receiver Spatial Modulation (GRSM) in a massive MIMO downlink scenario over millimetre wave channels. While GRSM enhances spectral efficiency (SE) and reduces power consumption, indexing additional bits using the spatial dimension increases the vulnerability to…

2025 21th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), Oct 2025, Marrakesh, Morocco. pp.1-7, ⟨10.1109/wimob66857.2025.11257439⟩. ⟨hal-05395480⟩

• Article dans une revue

Low-Profile Quad-Band AMC-Backed Antenna for Gain Enhancement

Z. Mordi, Z. Hamouda, M. Lagha, Pierre Laly, Tuami Lasri

The article details the design and performance of a compact, quad-band antenna that uses an artificial magnetic conductor to significantly enhance its gain for wireless applications. Topics include the antenna's structure and operating principle, the critical role of parametric studies in…

Microwave journal, 2025, 68 (8), pp.133. ⟨hal-05495690⟩

• Pré-publication, Document de travail

RAVID: Retrieval-Augmented Visual Detection: A Knowledge-Driven Approach for AI-Generated Image Identification

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

In this paper, we introduce RAVID, the first framework for AI-generated image detection that leverages visual retrieval-augmented generation (RAG). While RAG methods have shown promise in mitigating factual inaccuracies in foundation models, they have primarily focused on text, leaving visual…

2025. ⟨hal-05253934⟩