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Affichage de 1251 à 1260 sur 16261

Article dans une revue

Fabry-Pérot and Friedrich-Wintgen bound states in the continuum in a photonic triple-stub cavity

Yamina Rezzouk, Soufyane Khattou, Mohamed El Ghafiani, Madiha Amrani, El Houssaine El Boudouti, Abdelkrim Talbi, Bahram Djafari-Rouhani

Bound states in the continuum (BICs) are zero-width (infinite lifetime) trapped eigenmodes that remain conf ined in the system even though they coexist with a continuum of extended states. The resulting high-frequency resonances may have significant applications in photonic integrated circuits,…

Physical Review B, 2024, 109 (23), pp.235431. ⟨10.1103/physrevb.109.235431⟩. ⟨hal-04664485⟩

Article dans une revue

Reliable and robust integration of SAW strain sensor through reflow soldering

Othmane Marbouh, A. Mazzamurro, Y. Dusch, O. Bou Matar, N. Tiercelin, V. Maurice, P. Pernod, R. Viard, D. Laloy, K. Ettihir, A. Tounzi, A. Benabou, A. Talbi

Surface Acoustic Wave (SAW) sensors represent a prominent technological avenue for quantifying mechanical stress-induced deformations. Nonetheless, the integration of these Micro-Electro-Mechanical Systems (MEMS) sensors remains an complex challenge. Consequently, a common approach within a…

IEEE Sensors Letters, 2024, 8 (1), pp.1-4. ⟨10.1109/LSENS.2023.3341634⟩. ⟨hal-04344050⟩

Article dans une revue

Exploring the properties of higher-order Tamm plasmons for liquid and gas detection

O. Haidar, Baptiste Mathmann, Y. Dusch, Mohamed Boutghatin, E. Boudouti, G. Lévêque, A. Mir, A. Akjouj, A. Talbi

In this study, we present a numerical analysis of the higher-order Tamm plasmons for the design of a gas and liquid sensor. These plasmons are induced by a structure consisting of a cavity placed between the SiO2/Si3N4 Bragg grating and a finite layer of gold. This configuration is excited without…

AIP Conference Proceedings, 2024, 3241, pp.020006. ⟨10.1063/5.0247141⟩. ⟨hal-04932028⟩

Article dans une revue

Enhancing Tamm Plasmon Sensor Performance using Nanostructured Gold Grating and Porous Materials

O. Haidar, Baptiste Mathmann, Yannick Dusch, Mohamed El Barghouti, Romain Viard, Gaëtan Lévêque, El Houssaine El Boudouti, Abdellah A. Mir, A. Talbi, Abdellatif Akjouj

In this paper, we introduce a gas sensor concept consisting of a nanostructured gold grating coupled with a Distributed Bragg Reflector. This coupling makes it possible to obtain plasmonic Tamm states where excitation is possible at normal incidence and does not require the use of Kretschmann…

IEEE Sensors Journal, 2024, pp.1-1. ⟨10.1109/JSEN.2024.3399315⟩. ⟨hal-04607032⟩

Article dans une revue

An Incremental Time-Domain Mixed-Signal Matrix-Vector-Multiplication Technique for Low-Power Edge-AI

Kévin Hérissé, Benoit Larras, Bruno Stefanelli, Andreas Kaiser, Antoine Frappé

This paper proposes a time-domain mixed-signal computing architecture for Matrix-Vector Multiplication suited for embedded in-memory computing applications. The system leverages the low data rate of sensors’ data in embedded AI applications to target an energy-efficient implementation of the matrix…

IEEE Transactions on Circuits and Systems I: Regular Papers, In press, pp.1-12. ⟨10.1109/TCSI.2024.3480154⟩. ⟨hal-04765787⟩

Article dans une revue

Ultrafast skyrmion generation by plasmonic resonance

W. Al Saidi, Yannick Dusch, M. Myint, Nicolas Tiercelin, R. Sbiaa

This theoretical study unveils the potential for ultrafast skyrmion generation in magnetic thin films, driven by the remarkable plasmonic properties of gold nanoparticles. By combining the plasmonic, photothermal, and micromagnetic analysis, we explore size-dependent light absorption, resonance…

Physical Review B, 2024, 109 (18), pp.184427. ⟨10.1103/PhysRevB.109.184427⟩. ⟨hal-04601872⟩

Article dans une revue

Efficiency and Accuracy Evaluation of Multiple Diffusion‐Weighted MRI Techniques Across Different Scanners

Frederik Crop, Clémence Robert, Romain Viard, Julien Dumont, Marine Kawalko, Pauline Makala, Xavier Liem, Imen El Aoud, Aicha Ben Miled, Victor Chaton, Lucas Patin, David Pasquier, Ophélie Guillaud, Benjamin Vandendorpe, Xavier Mirabel, Luc Ceugnart, Camille Decoene, Thomas Lacornerie

Background The choice between different diffusion-weighted imaging (DWI) techniques is difficult as each comes with tradeoffs for efficient clinical routine imaging and apparent diffusion coefficient (ADC) accuracy. Purpose: To quantify signal-to-noise-ratio (SNR) efficiency, ADC accuracy,…

Journal of Magnetic Resonance Imaging, 2024, 59 (1), pp.311-322. ⟨10.1002/jmri.28869⟩. ⟨hal-04155928⟩

Article dans une revue

Present and future of micro-transfer printing for heterogeneous photonic integrated circuits

Gunther Roelkens, Jing Zhang, Laurens Bogaert, Emadreza Soltanian, Maximilien Billet, Ali Uzun, Biwei Pan, Yang Liu, Evangelia Delli, Dongbo Wang, Valeria Bonito Oliva, Lam Thi Ngoc Tran, Xin Guo, He Li, Senbiao Qin, Konstantinos Akritidis, Ye Chen, Yu Xue, Margot Niels, Dennis Maes, Max Kiewiet, Tom Reep, Tom Vanackere, Tom Vandekerckhove, Isaac Luntadila Lufungula, Jasper de Witte, Luis Reis, Stijn Poelman, Ying Tan, Hong Deng, Wim Bogaerts, Geert Morthier, Dries van Thourhout, Bart Kuyken

We present the current state of the art in micro-transfer printing for heterogeneously integrated silicon photonic integrated circuits. The versatility of the technology is highlighted, as is the way ahead to make this technology a key enabler for next-generation photonic systems-on-chip.

APL Photonics, 2024, 9 (1), ⟨10.1063/5.0181099⟩. ⟨hal-04395673⟩

Article dans une revue

Reverse-Bias Current Hysteresis at Low Temperature in GaN Schottky Barrier Diodes

B. Orfao, Mahmoud Abou Daher, R. A. Peña, B. G. Vasallo, S. Pérez, I. Íñiguez-De-La-Torre, G. Paz-Martinez, J. Mateos, Y. Roelens, M. Zaknoune, T. González

In this paper, we report an analysis of reverse current mechanisms observed in GaN Schottky barrier diodes leading to hysteretic behavior of the I\textendashV curves at low temperature. By means of DC measurements from 33 to 475\,K, we demonstrate the presence of two leakage mechanisms when…

Journal of Applied Physics, 2024, 135 (1), pp.014501. ⟨10.1063/5.0177853⟩. ⟨hal-04405976⟩

Article dans une revue

Switchable SAW Resonators and Ladder Filters Composed of Interdigitated Combs

R. Alcorta Galván, Charles Croënne, Bertrand Dubus, B. Loiseaux, E. Eustache, M. Bertrand, A.-C. Hladky-Hennion

This work presents the development of switchable SAW resonators fabricated on a LiNbO3 substrate, which use the Electrical Bragg Bandgap concept to control the resonance frequency. The modification of the electrical condition of electrode arrays shifts their bandgap center frequency which in turn…

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, In press, ⟨10.1109/TUFFC.2024.3441531⟩. ⟨hal-04675770⟩