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Autre publication scientifique

Young Professionals Events at the 2024 European Microwave Week [Young Professionals]

Samir Lagoug, Maya Alawar, Ana Inês Inácio, Anthony Ghiotto, Anne-Laure Billabert, Marina Deng, Pedro Rynkiewicz, Philippe Descamps, Valentina Palazzi

Provides society information that may include news, reviews or technical notes that should be of interest to practitioners and researchers.

2025, pp.100 - 102. ⟨10.1109/mmm.2024.3487792⟩. ⟨hal-04882235⟩

Thèse

High Resolution THz Spectroscopy Based on Frequency Combs and Optically Pumped Molecular Lasers, Spectroscopie THz à Haute Résolution Basée sur des Peignes de Fréquences et des Lasers Moléculaires Pompes Optiquement

Alexandra Khabbaz

The objective of this thesis is to study the use of frequency combs for high-resolution molecular spectroscopy in the terahertz (THz) region of the electromagnetic spectrum. This approach is based on the conversion of an optical frequency comb into the THz domain. Nevertheless, the state of the art…, L'objectif de cette thèse est d'étudier l'utilisation Peignes de fréquence pour la spectroscopie moléculaire à haute résolution dans la région du spectre électromagnétique Térahertz (THz). Cette approche est basée sur la conversion d'un peigne dans le domaine optique vers le…

Physics [physics]. Université du Littoral Côte d'Opale, 2025. English. ⟨NNT : 2025DUNK0571⟩. ⟨tel-04869248⟩

Chapitre d'ouvrage

Numerical Simulations of Methylammonium Tin Iodide-Based Perovskite Solar Cells

Mohammed Cherif Ramdani, Khadidja Rahmoun, Wissem Benaissa, Katir Ziouche

Perovskite solar cells have attracted significant attention within the scientific community due to their rapidly advancing performance. In particular, inorganic perovskite devices are renowned for their remarkable performance and enduring stability.This study introduces a device optimization…

Technological and Innovative Progress in Renewable Energy Systems, Springer Nature Switzerland, pp.339-344, 2025, Advances in Science, Technology & Innovation, ISBN 978-3-031-71925-7. ⟨10.1007/978-3-031-71926-4_59⟩. ⟨hal-04990775⟩

Article dans une revue

Experimental observation of mutual coupling in resonator array on thin-metal-film

Surya Revanth Ayyagari, Simonas Indrišiūnas, Alexey Basharin, Vytautas Janonis, Daniil Pashnev, Guillaume Ducournau, Polina Kuzhir, Irmantas Kašalynas

We present the experimental observation of electromagnetic mutual coupling in an array of ring-shaped resonators (meta-atoms) fabricated on a free-standing thin metal film using a maskless direct laser ablation technique. The transmission spectra of various resonator configurations were measured…

Journal of Applied Physics, 2025, 137 (1), ⟨10.1063/5.0245081⟩. ⟨hal-04885168⟩

Article dans une revue

Investigating Impacts of Local Pressure and Temperature on CVD Growth of Hexagonal Boron Nitride on Ge(001)/Si

Max Franck, Jarek Dabrowski, Markus Andreas Schubert, Dominique Vignaud, Mohamed Achehboune, Jean‐françois Colomer, Luc Henrard, Christian Wenger, Mindaugas Lukosius

The chemical vapor deposition (CVD) growth of hexagonal boron nitride (hBN) on Ge substrates is a promising pathway to high-quality hBN thin films without metal contaminations for microelectronic applications, but the effect of CVD process parameters on the hBN properties is not well understood yet…

Advanced Materials Interfaces, 2025, 12 (1), pp.2400467. ⟨10.1002/admi.202400467⟩. ⟨hal-05216562⟩

Communication dans un congrès

Pinces acoustiques hautes fréquences pour la manipulation d'objets micrométriques

Jean-Louis Thomas, Michael Baudoin, Roudy Al Sahely

Les pinces acoustiques sont l’équivalent des pinces optiques, elles utilisent un faisceau focalisé pour piéger en trois dimension un objet à l’aide de la pression de radiation. Ces dernières ont permis de faire des manipulation d’objets micro-métrique avec une précision nano-métrique. Néanmoins une…

CFA 2025 - 17e Congrès Français d'Acoustique, Société Française d'Acoustique (SFA), Apr 2025, Paris, France. ⟨hal-05365443⟩

Article dans une revue

Surface oxidation and oxygen incorporation in ScAlN films grown by molecular beam epitaxy

Valentina Gallardo-Mödinger, Frédéric Georgi, Xavier Wallart, Ileana Florea, Philippe Vennéguès, Yvon Cordier, Maxime Hugues

Recently, there has been much interest in the ScAlN alloy, thanks to its various potential applications in high-frequency high-power, acoustoelectric, and ferroelectric devices. Nonetheless, these applications could be impaired by the presence of oxygen in the alloy and the formation of a surface…

Journal of Applied Physics, 2025, 138 (24), pp.245701. ⟨10.1063/5.0303670⟩. ⟨hal-05440883⟩

Communication dans un congrès

Spintronic Terahertz Emitters with Integrated Metallic Terahertz Cavities

Adrien Wright, Martin Mičica, Pierre Koleják, Geoffrey Lezier, Kamil Postava, Jacques Hawecker, Anna de Vetter, Jérôme Tignon, Juliette Mangeney, Henri Jaffres, Romain Lebrun, Nicolas Tiercelin, M. Vanwolleghem, Sukhdeep Dhillon

Spintronic terahertz emitters (STEs), based on optical excitation of nanometer thick ferromagnetic/heavy metal (FM/HM) heterojunctions, have become important sources for the generation of terahertz (THz) pulses [1-2] . However, the efficiency of the optical-to-THz conversion remains limited.

CLEO: Science and Innovations, 2025, Long Beach, United States. pp.SS152_7, ⟨10.1364/CLEO_SI.2025.SS152_7⟩. ⟨hal-05835470⟩

Communication dans un congrès

Elastic wave propagation in diatom frustules

Chiara Gazzola, Xin Zhou, David Troadec, Marco Miniaci

Diatoms are microscopic algae encapsulated inside a silica inorganic exoskeleton called frustule featuring a complex quasi-regular and hierarchical distribution of micro- and nano-scaled pores. The mechanical and optical behaviors of these biological systems have already been investigated in…

CFA 2025 - 17e Congrès Français d'Acoustique, Société Française d'Acoustique (SFA), Apr 2025, Paris, France. ⟨hal-05366196⟩

Article dans une revue

Rethinking Attention Gated with Hybrid Dual Pyramid Transformer-CNN for Generalized Segmentation in Medical Imaging

Fares Bougourzi, Fadi Dornaika, Abdelmalik Taleb-Ahmed, Vinh Truong Hoang

Inspired by the success of Transformers in Computer vision, Transformers have been widely investigated for medical imaging segmentation. However, most of Transformer architecture are using the recent transformer architectures as encoder or as parallel encoder with the CNN encoder. In this paper, we…

Lecture Notes in Computer Science, 2025, Pattern Recognition 27th International Conference, ICPR 2024, Kolkata, India, December 1–5, 2024, Proceedings, Part IV, 15304, pp.243-258. ⟨10.1007/978-3-031-78128-5_16⟩. ⟨hal-04850794⟩