Publications

• Article dans une revue

Linking Cause and Effect: Nanoscale Vibrational Spectroscopy of Space Weathering from Asteroid Ryugu

Sylvain Laforet, Corentin Le Guillou, Francisco de la Peña, Michael Walls, Luiz H.G. Tizei, Maya Marinova, Pierre Beck, van T. H. Phan, Damien Jacob, Bahae-Eddine Mouloud, Daniel Hallatt, Mario Pelaez-Fernandez, Jean-Christophe Viennet, David Troadec, Takaaki Noguchi, Toru Matsumoto, Akira Miyake, Hisayoshi Yurimoto, Hugues Leroux

Abstract Airless bodies are subjected to space-weathering effects that modify the first few microns of their surface. Therefore, understanding their impact on the optical properties of asteroids is key to the interpretation of their color variability and infrared reflectance observations. The…, Les corps dépourvus d'atmosphère tels que les astéroïdes sont soumis à des effets d’altération spatiale qui modifient les premiers microns de leur surface. Par conséquent, la compréhension de leur impact sur les propriétés optiques de ces astéroïdes est essentielle pour l’interprétation de…

The Astrophysical Journal Letters, 2024, The Astrophysical Journal Letters, 963 (2), pp.L45. ⟨10.3847/2041-8213/ad2b65⟩. ⟨hal-04505901⟩

• Article dans une revue

Exceptional points for crack detection in non-Hermitian beams

Yabin Jin, Wenjun Li, Bahram Djafari-Rouhani, Yan Li, Yanxun Xiang

We study exceptional points (EPs) in parity-time (PT) symmetric non-Hermitian beams and explore their applications in crack detection. The EPs are formed by coupling different beam modes under feedback-controlled forces. The variations of the required non-Hermitian coefficient for the achievement…

Journal of Sound and Vibration, 2024, 572, pp.118162. ⟨10.1016/j.jsv.2023.118162⟩. ⟨hal-04372629⟩

• Article dans une revue

Electromechanical sensitivity of ZnO thin films at high-pressure regime for SAW strain sensor applications

Fahima Arab, Fares Kanouni, Rafik Serhane, Yan Pennec

This paper employs Density Functional Theory (DFT) to investigate the influence of high hydrostatic pressure on the piezo-elastic properties of ZnO with a specific focus on its repercussions for Surface Acoustic Wave (SAW) devices. Our findings reveal a significant enhancement in the piezoelectric…

Materials Today Communications, 2024, 38, pp.107719. ⟨10.1016/j.mtcomm.2023.107719⟩. ⟨hal-04372459⟩

• Article dans une revue

Control of microstructure and composition of reactively sputtered vanadium nitride thin films based on hysteresis curves and application to microsupercapacitors

Allan Lebreton, Marie-Paule Besland, Pierre-Yves Jouan, Tatiana Signe, Cédric Mannequin, Mireille Richard-Plouet, Maryline Le Granvalet, Christophe Lethien, Thierry Brousse, Jérémy Barbé

Vanadium nitride (VN) thin films were prepared by reactive DC magnetron sputtering of a vanadium target using nitrogen as reactive gas. The structural, morphological, and compositional evolution of these films is described based on hysteresis diagrams plotting the sputtering power versus nitrogen…

Journal of Vacuum Science & Technology A, 2024, 42 (2), pp.023405. ⟨10.1116/5.0177028⟩. ⟨hal-04423908⟩

• Article dans une revue

Quantum point-contact sensors: State of the art and prospects

Gennadii Kamarchuk, Olexander Pospelov, Volodymyr Vakula, Eric Faulques

We present generalized information on the new type of universal quantum detectors operating on the basis of Yanson point contacts. The properties and capabilities of quantum point-contact detectors are totally different from those of conventional sensors based on the principle of changing electric…

Sensors and Actuators B: Chemical, 2024, 402, pp.135064. ⟨10.1016/j.snb.2023.135064⟩. ⟨hal-04548686⟩

• Article dans une revue

Engineering and optimization of the SPR device ZnO/Ag/WO3/Ni/2D-Nanomaterials highly sensitive for biomedical processing and detection

Mohamed El Barghouti, Fatima Houari, Abdellatif Akjouj, Abdellah Mir

In this paper, we present a detailed study of the effect of WO3 and Ni films in the presence of BP and BlueP-MDC nanomaterial layers on the sensitivity of a surface plasmon resonance (SPR) following the change in refractive index of the detection medium. Our nanostructure is based on the…

Optical Materials, 2024, 149, pp.115019. ⟨10.1016/j.optmat.2024.115019⟩. ⟨hal-04465252⟩

• N°spécial de revue/special issue

Guest Editorial: Special Issue on Wide and Ultrawide Band Gap Semiconductor Devices for RF and Power Applications

Matteo Meneghini, Geok Ing Ng, Farid Medjdoub, Matteo Buffolo, Shireen Warnock, Digbijoy Nath, Jun Suda, Junxia Shi, Shyh-Chiang Shen

IEEE Transactions on Electron Devices, 71 (3), pp.1340-1343, 2024, ⟨10.1109/TED.2024.3359934⟩. ⟨hal-04493325⟩

• Article dans une revue

Adjusting Ag deposition power to improve corrosion resistance of ITO/Ag/ITO film for gate driver on array

Pingping Zhang, Zhiqiang Zhang, Xiang Yu, Lei Yang, Shuo Zhao, Rabah Boukherroub

Gate Driver on Array (GOA) can fulfil narrow-frame full screen of display device, but may encounter through-hole burnout during operation due to electrochemical corrosion under high-temperature and high-humidity environments. Through-hole burnout originates from vapor that penetrates display…

Vacuum, 2024, 221, pp.112918. ⟨10.1016/j.vacuum.2023.112918⟩. ⟨hal-04374549⟩

• Article dans une revue

Spintronic terahertz emitters with integrated metallic terahertz cavities

Martin Mičica, Adrien Wright, Pierre Koleják, Geoffrey Lezier, Kamil Postava, Jacques Hawecker, Anna de Vetter, Jérôme Tignon, Juliette Mangeney, Henri Jaffrès, Romain Lebrun, Nicolas Tiercelin, Mathias 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. However, the efficiency of the optical-to-THz conversion remains limited. Although…

Nanophotonics, 2024, 13 (10), pp.1899-1907. ⟨10.1515/nanoph-2023-0807⟩. ⟨hal-04509627⟩

• Article dans une revue

Tilt-related alignment issues in miniature micromechanical on-wafer electrical probes composed of multiple flexible microcantilevers

Steve Arscott

Abstract Some new issues concerning the contacting and positioning of small electrical microelectromechanical systems (MEMS) probes based on multiple, flexible microcantilevers are presented here. A tilt error, associated with the lateral probe roll, means that contact touchdown occurs sequentially…

Engineering Research Express, 2024, 6 (1), ⟨10.1088/2631-8695/ad2ccc⟩. ⟨hal-04485030⟩