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Article dans une revue

Thermo-optic coefficient of single-crystal thin-film barium titanate on insulator

Hong-Lin Lin, Yuhui Yin, Lea Roos, El Hadj Dogheche, Aaron Danner

We report the thermo-optic coefficient (TOC) of single-crystalline barium titanate (BTO) thin film on dysprosium scandate (DSO) at 1550 nm, determined using both prism coupler measurements and an integrated thermo-optic Mach–Zehnder interferometer (TO MZI). The prism coupler, combined with…

Optical Materials Express, 2025, 15 (11), pp.2975. ⟨10.1364/OME.577084⟩. ⟨hal-05508869⟩

Communication dans un congrès

RF Antenna Design and Integration for Neuromorphic Devices

Romain Alcesilas, Divitha Seetharamdoo, David Sodoyer, Kevin Carpentier, François Danneville, Christophe Loyez

Neuromorphic devices are systems made up of artificial neurons that replicate the function of biological neurons by generating spike trains. It offers several advantages for sensing such as the encoding of the measured signal in space and time domains with a very low power consumption. Integrating…

2025 IEEE Radio and Antenna Days of the Indian Ocean (RADIO), Oct 2025, Flic-en-Flac, Mauritius. pp.1-4, ⟨10.1109/RADIO65825.2025.11296305⟩. ⟨hal-05572937⟩

Article dans une revue

Recent Advances in Sustainable and Green Chemistry for Polyurethane-Based High-Performance Supercapacitor Electrodes

Amr Mansi, Sherief Al Kiey, S. Zein El Abedin, Mohamed Bassyouni, Ahmed Wassel, Ahmed Yousif, Yasser Elhenawy, Alexandre Barras, Sabine Szunerits, Rabah Boukherroub, Mohamed Hasanin

The increasing demand for sustainable energy storage solutions has intensified the focus on high-performance supercapacitors, known for their rapid charge/discharge capabilities, high power density, and long cycle life. Polyurethane (PU)-based materials have gained attention as promising candidates…

Transactions of Tianjin University, 2025, ⟨10.1007/s12209-025-00443-3⟩. ⟨hal-05393530⟩

Article dans une revue

Bioinspired recognition of cricket calling songs in sub-nanowatt inter-pulse delay detector

Eugénie Dalmas, Christophe Loyez, Kevin Carpentier, François Danneville

Abstract Energy efficiency is one of the main concerns in the design of embedded circuits, especially considering the ever-growing amount of portable devices produced for specialized to everyday life applications. Taking inspiration from neuronal processes in the brain, neuromorphic systems are…

Bioinspiration and Biomimetics, 2025, 20 (6), pp.066009. ⟨10.1088/1748-3190/ae0aa8⟩. ⟨hal-05314782⟩

Communication dans un congrès

Molecular Detection of SARS-CoV-2 Viral Particles in Exhaled Breath Condensate via Engineered Face Masks

Hannes Dörfler, John Daniels, Shekhar Wadekar, Quentin Pagneux, Dennis Ladage, Georg Greiner, Ojan Assadian, Rabah Boukherroub, Sabine Szunerits

Background: Exhaled breath condensate (EBC), defined as the condensed water vapor fraction from exhaled breath, rep- resents a largely untapped diagnostic medium for lung-related diseases. This study features a novel non-invasive approach for the collection of EBC using engineered face masks. We…

Jahrestagung der Österreichischen Gesellschaft für Pneumologie, Oct 2025, Linz, Austria. ⟨hal-05478136⟩

Communication dans un congrès

Dissipative layers for HSQ resist nanopatterning by E-beam lithography on insulating substrates, Couche dissipative pour nanostructuration de résine HSQ par lithographie électronique sur substrat isolant

Anne-Sophie Vaillard, Yves Deblock, Pascal Tilmant, David Guérin, Christophe Boyaval, Giuseppe Di Gioia

Dissipative layer is a key element in nanopatterning resist such as HSQ on insulating substrates. At IEMN we are currently investigating different strategies to avoid surface charging effect. Since a single top layer of Ge or Au leads to non-conform patterning, the first approach involves…, La couche dissipative est un élément clé dans les résines nanostructurées telles que le HSQ sur des substrats isolants. À l'IEMN, nous étudions actuellement différentes stratégies pour éviter l'effet de charge superficielle. Étant donné qu'une seule couche supérieure de Ge ou d'…

Journées Renatech 2025 Litho & Gravure, Renateck network, Jun 2025, Palaiseau, France. ⟨hal-05316242⟩

Poster de conférence

Ultra-Low-Power Neuromorphic Spike Detector for Large-Scale Neural Interfaces

Louis Regnacq, Hicham Lahrach, Anna Kobzar, Rédha Kassi, Pascal Mariot, A. Cappy, Christel Vanbesien, Alexis Vlandas, Christophe Loyez, Virginie Hoel

Neural interfaces are rapidly scaling, now featuring thousands of electrodes that record simultaneously. As channel counts grow, design constraints become increasingly stringent: implants must remain compact and ultra–low power while managing massive data streams. With data rates often exceeding…

NeurotechEU autumn school on Closed-Loop Neurotechnologies: From Sensors to Application, Oct 2025, Villeneuve d’Ascq (Lille), France. ⟨hal-05372344⟩

Poster de conférence

Design of new neurobiohybrid interfaces ensuring bidirectionnal communication between living and artificial neurons

Anna Kobzar, Louis Regnacq, Pascal Mariot, Rédha Kassi, A. Cappy, David Delcroix, Alexis Vlandas, Christel Vanbesien, Virginie Hoel

This interdisciplinary research combines neuromorphic engineering with biohybrid neuroscience to develop a bidirectional neurobiohybrid (NBH) interface linking living neurons to CMOS-based artificial neurons (65 nm technology, SPINE project). The work focuses on three main objectives: (1)…

NeurotechEU autumn school on Closed Loop Neurotechnologies : from sensors to application, Oct 2025, Villeneuve d'Ascq, France. ⟨hal-05384918⟩

Article dans une revue

Breaking through Microbial Defenses─Organic Acid-Based Deep Eutectic Solvents as a Neoteric Strategy in Bacterial Biofilms, Persister, and Fungal Control

Tomasz Swebocki, Aleksandra Kocot, Karolina Cieminska, Clovis Bortolus, Jérôme Muchembled, Meroua Mechouche, Justine Jacquin, Kamel Haddadi, Ali Siah, Boualem Sendid, Rabah Boukherroub, Magdalena Plotka

This study explores the adaptation of organic acid-based deep eutectic solvents (OA-DESs) as effective antimicrobial agents. Having already demonstrated their efficacy against planktonic bacteria in our previous research, herein we investigate their impact on more complex microbial forms, including…

ACS Applied Bio Materials, 2025, ⟨10.1021/acsabm.5c01159⟩. ⟨hal-05318179⟩

Thèse

Guides d'onde à base de GaAs à basse température : vers un modulateur électro-optique intégré pour le moyen infrarouge., Waveguides based on low-temperature grown GaAs : towards an integrated, mid-infrared electro-optic modulator.

Loic Feukam Takoundjou

La modulation rapide d'amplitude et de phase est essentielle pour de nombreuses applications, notamment la stabilisation d'amplitude/fréquence laser, la détection cohérente, la spectroscopie FM/AM et la détection de gaz, le verrouillage de modes, les communications optiques, les contre-…, Fast amplitude and phase modulation are essential for a number of applications, including laser amplitude/frequency stabilization, coherent detection, FM/AM spectroscopy and gas sensing, mode-locking, optical communications, military countermeasures, etc.Despite recent encouraging results, in the…

Micro et nanotechnologies/Microélectronique. Université de Lille, 2025. Français. ⟨NNT : 2025ULILN016⟩. ⟨tel-05469780⟩