Ridong Jia, Wenhao Wang, Yi Ji Tan, Thomas Caiwei Tan, Manoj Gupta, Zhonghua Gu, Prakash Pitchappa, Pascal Szriftgiser, Guillaume Ducournau, Ranjan Singh

A photonic directional coupler plays a critical role in photonic integrated circuits and communication technologies, facilitating precise power distribution for multi-channel data routing and transmission. However, conventional directional couplers face limitations in further optimizing the…

Laser and Photonics Reviews, In press, ⟨10.1002/lpor.202501209⟩. ⟨hal-05308730⟩

Communication dans un congrès

Microstreaming pour la propulsion de micronageurs artificiels acoustiques

Sarah Cleve, Jules Ghesquiere, Saeid Mollaei, Gustav Modler, Henrik Bruus, Michael Baudoin, Olivier Bou Matar

Le développement de micro-nageurs artificiels a suscité un intérêt croissant durant ces dernières années. En effet, un nageur entièrement manœuvrable permettrait diverses applications <latex>\emphin vitro</latex> et même <latex>\emphin vivo</latex> telles que des thérapies…

CFA 2025 - 17e Congrès Français d'Acoustique, Société Française d'Acoustique (SFA), Apr 2025, Paris, France. ⟨hal-05364509⟩

Article dans une revue

High-speed integrated silicon germanium optical modulator with 3 GHz bandwidth in the 5-9 µm wavelength range

Javier Huertas-Pedroche, Victor Turpaud, Luca Lucia, Adel Bousseksou, Thi Hao Nhi Nguyen, Hamza Dely, Gia Long Ngo, Stefano Calcaterra, Davide Impelluso, Afonso de Cerdeira Oliveira, Etienne Herth, David Bouville, Samson Edmond, Jean Rene Coudevylle, Victor Merupo, Emilien Peytavit, Jean-François Lampin, Stefano Barbieri, Jacopo Frigerio, Raffaele Colombelli, Giovanni Isella, Delphine Marris-Morini

Mid-infrared spectroscopy is a powerful technique for identifying chemical and biological substances, increasing the demand for compact and cost-effective integrated systems. In this context, integrated electro-optic modulators are essential to implement advanced techniques such as synchronous…

Optics Express, 2025, 33 (20), pp.42408-42419. ⟨10.1364/OE.572563⟩. ⟨hal-05287436⟩

Article dans une revue

Deep Reinforcement Learning for Joint Time and Power Management in SWIPT-EH CIoT

Nadia Abdolkhani, Nada Abdel Khalek, Walaa Hamouda, Iyad Dayoub

This letter presents a novel deep reinforcement learning (DRL) approach for joint time allocation and power control in a cognitive Internet of Things (CIoT) system with simultaneous wireless information and power transfer (SWIPT). The CIoT transmitter autonomously manages energy harvesting (EH) and…

IEEE Communications Letters, 2025, 29 (4), pp.660-664. ⟨10.1109/LCOMM.2025.3536182⟩. ⟨hal-05066855⟩

Communication dans un congrès

Supercooling droplets on environmentally-friendly biomimetic anti-icing surfaces

Florian Bas, Vincent Thomy, Yannick Coffinier, Maude Jimenez

DROPLETS, Jul 2025, Liège (Belgique), Belgium. ⟨hal-05176171⟩

Article dans une revue

Electronic and Thermoelectric Properties of Molecular Junctions Incorporating Organometallic Complexes: Implications for Thermoelectric Energy Conversion

Joseane Santos Almeida, Sergio Gonzalez Casal, Hassan Al Sabea, Valentin Barth, Gautam Micra, Vincent Delmas, David Guérin, Olivier Galangau, Tiark Tiwary, Thierry Roisnel, Vincent Dorcet, Lucie Norel, Colin van Dyck, Elke Scheer, Dominique Vuillaume, Jérôme Cornil, Stéphane Rigaut, Karine Costuas

The electronic and thermoelectric properties of molecular junctions formed from iron and ruthenium metal-acetylide were studied using complementary experimental techniques and quantum chemical simulations. We performed physical characterizations of single-molecule and self-assembled monolayer…

ACS Applied Nano Materials, 2025, 8, pp.14261-14280. ⟨10.1021/acsanm.5c02362⟩. ⟨hal-05015058⟩