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Communication dans un congrès

Textile-based metamaterials for electromagnetic wave filtering and guiding

Ali Ghaddar, Baptiste Garnier, Cédric Cochrane, François Rault, Vladan Koncar, Eric Lheurette, Ludovic Burgnies

Metamaterials produced by weaving and embroidery are presented for electromagnetic wave filtering and surface wave guiding, respectively. First, experiments evidence a phase advance of a traveling wave through a woven metamaterial with a high-pass feature around 27 GHz. Second, meander-shaped...

2025 7th International Conference on the Challenges, Opportunities, Innovations and Applications in Electronic Textiles (E-Textiles), Nov 2025, Roubaix, France. pp.1-6, ⟨10.1109/E-Textiles67498.2025.11686570⟩. ⟨hal-05820861⟩

Communication dans un congrès

Remarkable electronic and optical properties of HgTe quantum dots

Antoine Hage, Christophe Delerue

HgTe is a very special material. Semi-metallic in bulk, it can become semiconducting under the effect of quantum confinement. This is well known in the case of quantum wells based on HgCdTe/HgTe/HgCdTe heterostructures with infrared optoelectronic properties at the heart of current applications....

International Symposium on Quantum Science and Engineering IQSE-2025, Unesco - International Year of Quantum Science and Technology, Nov 2025, Tunja, Colombia. ⟨hal-05363691⟩

Article dans une revue

Experimental demonstration of tunable spectral flow of elastic localized modes

Sai Aditya Raman Kuchibhatla, Aakash Gupta, Marco Miniaci, Michael Leamy

We experimentally demonstrate the tunability of a topological defect mode and its spectral flow within the bandgap of a periodic structure made of beams and cylindrical masses and hosting a topological bandgap in its frequency spectrum. A defect is introduced by incorporating a pair of...

Applied Physics Letters, 2025, 127 (19), ⟨10.1063/5.0293535⟩. ⟨hal-05495567⟩

Article dans une revue

Human Vision‐Adapted Semitransparent Organic Solar Cells for Multicolored Architectural Application

Zhouyi Lu, Baozhong Deng, Zhengnan Lin, Gaoyu Dai, Luqiao Yin, Gaëtan Lévêque, Bruno Grandidier, Furong Zhu, Tao Xu

Abstract Semitransparent organic solar cells (ST‐OSCs) offer significant potential for building‐integrated energy harvesting combined with daylight transmission. However, simultaneously achieving high power conversion efficiency (PCE) and perceptually accurate color rendition remains challenging....

Advanced Functional Materials, 2025, ⟨10.1002/adfm.202520191⟩. ⟨hal-05509130⟩

Communication dans un congrès

Digital Predistortion of D-Band Power Amplifiers Using AI-Based Nonlinearity Compensation

Hiba Alqasir, Justine Mauro, Ihsen Alouani, Iyad Dayoub

This paper presents the first demonstration of a neural network-based digital predistortion (DPD) architecture for compensating nonlinearities in real D-band power amplifiers (PAs). The proposed method employs two separate models to independently correct amplitude (AM/AM) and phase (AM/PM)...

2025 IEEE Middle East Conference on Communications and Networking (MECOM), Nov 2025, Cairo, Egypt. pp.1-6, ⟨10.1109/MECOM67453.2025.11439105⟩. ⟨hal-05620573⟩

Article dans une revue

Sierpiński carpet-inspired hierarchical patterning of porous materials for sound absorption

S. Kuznetsova, F. Allein, V.F. Dal Poggetto, F-X Bécot, M Miniaci

Efficient sound absorption at low and mid frequencies is essential for mitigating anthropogenic noise but remains a scientific and engineering challenge. While porous materials are effective at medium and high frequencies, they typically require considerable thickness to absorb low-frequency sound...

npj Acoustics, 2025, 1, pp.25. ⟨10.1038/s44384-025-00023-8⟩. ⟨hal-05393314⟩

Communication dans un congrès

Accommodation of highly mismatched III-V semiconductors by nanoscale selective area growth

Ludovic Desplanque, C Barbot, W Khelifi, Christophe Coinon, M Berthe, Y Deblock, David Troadec, X Wallart, B Grandidier, G Patriarche, Qianqian Lan, Ph Ebert, N Chaize, P.-H Jouneau, H Sellier

<div><p>Semiconductors with a low electron effective mass and a strong spin-orbit interaction, such as indium arsenide (InAs) and indium antimonide (InSb), are particularly appealing for the fabrication of advanced electronic and quantum devices. However, their development for...

Conférence MATEPI 2025, Nov 2025, Villeneuve-d'Ascq, France. ⟨hal-05502360⟩

Article dans une revue

Computer vision in warehouse management automation: A survey on implemented methods with prototyping hardware

Chaouki Tadjine, Abdelkrim Ouafi, Azeddine Benlamoudi, Abdelmalik Taleb-Ahmed

In the context of the fourth industrial revolution, warehouse management systems are increasingly integrating advanced computer vision technologies, such as Autonomous Mobile Robots (AMRs), drones, Unmanned Aerial Vehicles (UAVs), robotic arms, and smart glasses. Despite their growing adoption, a...

Engineering Applications of Artificial Intelligence, 2025, 160, pp.111886. ⟨10.1016/j.engappai.2025.111886⟩. ⟨hal-05208300⟩

Article dans une revue

Energy minimizing capacitated covering vehicle routing problem

Milena Vukićević, Mustapha Ratli, Atika Rivenq, Raca Todosijević, Bassem Jarboui

This paper introduces the Energy Minimizing Covering Capacitated Vehicle Routing Problem, which aims to minimize total energy consumed during delivery routes while satisfying customers’ demands. The problem considers a homogeneous fleet of identical vehicles stationed at a central depot and...

Applied Soft Computing, 2025, 183, pp.113620. ⟨10.1016/j.asoc.2025.113620⟩. ⟨hal-05215104⟩

Article dans une revue

The impact of defect density on a CGS/CIGS tandem solar cell’s performance

D. Achouri, A. Aissat, S. Dupont, M.H. Dhaou, F. Saidi, J.-P. Vilcot

Copper Indium Gallium Selenide (CIGS) solar cells became a leading thin-film photovoltaic device because of their stability, relatively low production costs, and high efficiency, particularly when used in tandem configurations. A monolithic tandem cell is proposed in this paper. Copper Gallium...

Solar Energy, 2025, 301, pp.113997. ⟨10.1016/j.solener.2025.113997⟩. ⟨hal-05308788⟩