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Affichage de 3271 à 3280 sur 16231

Article dans une revue

Multi-Terminal Memristive Devices Enabling Tunable Synaptic Plasticity in Neuromorphic Hardware: A Mini-Review

Yann Beilliard, Fabien Alibart

Neuromorphic computing based on spiking neural networks has the potential to significantly improve on-line learning capabilities and energy efficiency of artificial intelligence, specially for edge computing. Recent progress in computational neuroscience have demonstrated the importance of…

Frontiers in Nanotechnology, 2021, 3, pp.779070. ⟨10.3389/fnano.2021.779070⟩. ⟨hal-04157007⟩

Article dans une revue

Structural and microstructural features of lead‐free BNT–BT thin films: Nanoscale electromechanical response analysis

Yanela Mendez‐gonzález, Anthony Ferri, Elton Lima, Ahmad Hamieh, Denis Remiens, Aimé Peláiz‐barranco, Atair Silva, José Santos Guerra

The structural, microstructural, and electromechanical properties have been investigated at the nanoscale, as a function of the lanthanum concentration, in Bi0.506Na0.46Ba0.08–3x/2LaxTiO3</sub…

Journal of the American Ceramic Society, 2021, 104 (7), pp.3665-3681. ⟨10.1111/jace.17645⟩. ⟨hal-03178146⟩

Article dans une revue

Dielectric Passivation and Edge Effects in Planar GaN Schottky Barrier Diodes

B. Orfao, B. Vasallo, S. Perez, J. Mateos, D. Moro-Melgar, M. Zaknoune, T. Gonzalez

The influence of passivation on the edge effects (EEs) present in the capacitance-voltage ( C- V) characteristics of GaN Schottky barrier diodes (SBDs) with realistic geometry is analyzed by means of Monte Carlo simulations. The enhancement of the performance of SBDs as frequency multipliers is…

IEEE Transactions on Electron Devices, 2021, 68 (9), pp.4296-4301. ⟨10.1109/TED.2021.3097703⟩. ⟨hal-03508422⟩

Article dans une revue

Large-area femtosecond laser milling of silicon employing trench analysis

Arun Bhaskar, Justine Philippe, Flavie Braud, Etienne Okada, Vanessa Avramovic, Jean-François Robillard, Cédric Durand, Daniel Gloria, Christophe Gaquière, Emmanuel Dubois

A femtosecond laser is a powerful tool for micromachining of silicon. In this work, large-area laser ablation of crystalline silicon is comprehensively studied using a laser source of pulse width 300 fs at two wavelengths of 343 nm and 1030 nm. We develop a unique approach to gain insight into the…

Optics and Laser Technology, 2021, 138, pp.106866. ⟨10.1016/j.optlastec.2020.106866⟩. ⟨hal-03091197⟩

Communication dans un congrès

Alpha-stable model for interference in IoT networks

Laurent Clavier, Troels Pedersen, Ignacio Rodriguez Larrad, Malcolm Egan

The increase in connected device, linked with the evolution of IoT and cellular networks with 5G and towards 6G makes crucial the limitation of the interference impact. Devices in networks (like LoRa, SigFox and even WiFi) or in different networks are not necessarily coordinated to optimize their…

International Conference on Antenna Measurements and Applications, CAMA 2021, Nov 2021, Antibes Juan-les-Pins, France. pp.575-578, ⟨10.1109/CAMA49227.2021.9703600⟩. ⟨hal-03582453⟩

Communication dans un congrès

Event-driven ECG classification using an open-source, LC-ADC based non-uniformly sampled dataset

M. Saeed, Q. Wang, O. Märtens, Benoit Larras, Antoine Frappé, B. Cardiff, D. John

In this article, non-uniformly sampled electrocardiogram (ECG) signals obtained from level-crossing analog-to-digital converters (LC-ADCs) are analyzed for event-driven classification and compression performance. The signal compression results show that it is important to assess the distortion in…

53rd IEEE International Symposium on Circuits and Systems, ISCAS 2021, May 2021, Daegu, South Korea. pp.9401333, ⟨10.1109/ISCAS51556.2021.9401333⟩. ⟨hal-03362265⟩

Chapitre d'ouvrage

16 - Transmission Line Photonic Crystals: A Comparison of Green's Formalism, Lumped Circuit Element Model, and Finite Element Method

Abdelkrim Talbi, El Houssaine El Boudouti, Cécile Ghouila-Houri, Abdellatif Akjouj, Bahram Djafari-Rouhani, L. Dobrzynski

This chapter presents the modeling, using Advanced Design System (ADS) from Keysight Technologies and Finite Element Method (FEM) based on Comsol Multiphysics tools, of photonic circuits. We particularly report in this chapter a confirmation of the results reported in Chapters 9, 10, and 11…

Photonics, Part 2: Photonic Circuits, Elsevier, pp.419-435, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00026-5⟩. ⟨hal-03359907⟩

Chapitre d'ouvrage

20 - Omnidirectional Bandgaps and Selective Transmission in Layered Photonic Crystals

Abdellatif Akjouj, El Houssaine El Boudouti, L. Dobrzynski, Bahram Djafari-Rouhani

It has been shown that a one-dimensional periodic structure such as a layered photonic crystal can exhibit the property of omnidirectional reflection, which means that any incident wave launched from the vacuum (or from a substrate) will undergo a total reflection at the layered photonic crystal…

Photonics, Part Three: Photonic Materials, Elsevier, pp.569-586, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00031-9⟩. ⟨hal-03360011⟩

Chapitre d'ouvrage

22 - Superluminal, Negative Delay Times and Selective Transmission in Isotropic-Anisotropic Layered Media

El Houssaine El Boudouti, Bahram Djafari-Rouhani, Abdellatif Akjouj, L. Dobrzynski

In this chapter, we investigate the possibility of superluminal and negative delay times for electromagnetic wave propagation in a linear and passive periodic structure consisting of alternating isotropic and anisotropic media. These phenomena are due to the birefringence of the anisotropic layers…

Photonics, Part Three: Photonic Materials, Elsevier, pp.623-655, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00033-2⟩. ⟨hal-03360015⟩

Article dans une revue

Asymmetric micro-supercapacitors based on electrodeposited Ruo2 and sputtered VN films

Bouchra Asbani, Kevin Robert, Pascal Roussel, Thierry Brousse, Christophe Lethien

Research on micro-supercapacitors remains one of the most important activities in the area of electrochemical energy storage for powering smart and miniaturized electronic devices. Here we design an asymmetric micro-supercapacitor (A-MSC) combining sputtered vanadium nitride film (VN) and…

Energy Storage Materials, 2021, 37, pp.207-214. ⟨10.1016/j.ensm.2021.02.006⟩. ⟨hal-03198793⟩