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Affichage de 3371 à 3380 sur 16261

Article dans une revue

Optomechanic Coupling in Ag Polymer Nanocomposite Films

Adnane Noual, Eunsoo Kang, Tanmoy Maji, Manos Gkikas, Bahram Djafari-Rouhani, George Fytas

Particle vibrational spectroscopy has emerged as a new tool for the measurement of elasticity, glass transition, and interactions at a nanoscale. For colloid-based materials, however, the weakly localized particle resonances in a fluid or solid medium renders their detection difficult. The strong…

Journal of Physical Chemistry C, 2021, 125 (27), pp.14854-14864. ⟨10.1021/acs.jpcc.1c04549⟩. ⟨hal-03538884⟩

Article dans une revue

A generalized deep learning-based framework for assistance to the human malaria diagnosis from microscopic images

Ziheng Yang, Halim Benhabiles, Karim Hammoudi, Feryal Windal, Ruiwen He, Dominique Collard

Malaria is an infectious disease caused by Plasmodium parasites and is potentially human life-threatening. Children under 5 years old are the most vulnerable group with approximately one death every two minutes, accounting for more than 65% of all malaria deaths. The World Health Organization (WHO…

Neural Computing and Applications, 2021, ⟨10.1007/s00521-021-06604-4⟩. ⟨hal-03457872⟩

Communication dans un congrès

Design of a solid-fluid acoustic sensor based on Fano resonances

I. Quotane, M. Amrani, Cécile Ghouila-Houri, E.H. El Boudouti, L. Krutyanskiy, Bogdan Piwakowski, Philippe Pernod, Abdelkrim Talbi, Bahram Djafari-Rouhani

The achievement of an efficient acoustic biosensor based on one dimensional solid-liquid phononic crystals supporting bound states in the continuum (BICs) and Fano resonances is reported herein. The structure used in this work is made of solid-liquid-solid triple layer embedded in water. The main…

2021 Symposium on Design, Test, Integration and Packaging of MEMS and MOEMS, DTIP 2021, Aug 2021, Paris, France. ⟨10.1109/DTIP54218.2021.9568664⟩. ⟨hal-03508194⟩

Chapitre d'ouvrage

1 - Open loop

L. Dobrzynski, Housni Al Wahsh, Abdellatif Akjouj, El Houssaine El Boudouti, Cécile Ghouila-Houri, Abdelkrim Talbi, Gaëtan Lévêque, Bahram Djafari-Rouhani, Yan Pennec, Yabin Jin

Networks can be constructed out of finite open loops. Open loops are guides such that their one-dimensional properties may be considered independent of the open loop shape and radius. Their response function is derived from that of infinite open loops. A general definition of eigenstates is also…

Photonics, Part one: photonic paths, Elsevier, pp.3-13, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00010-1⟩. ⟨hal-03350729⟩

Chapitre d'ouvrage

3 - Path states

L. Dobrzynski, Housni Al Wahsh, Abdellatif Akjouj, El Houssaine El Boudouti, Bahram Djafari-Rouhani, Cécile Ghouila-Houri, Abdelkrim Talbi, Gaëtan Lévêque

Any open and closed loop eigenfunction has zero motion space points, called here robust zeros. Any such zero is robust because its eigenstate cannot be activated by any action applied on it. Indeed, such zero space positions remain unaffected when the loop is interfaced with its outside world only…

Photonics, Part one : photonic paths, Elsevier, pp.21-31, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00012-5⟩. ⟨hal-03350804⟩

Communication dans un congrès

Non-linear analysis of a broadband power amplifier at 300 GHz

Haitham Ghanem, Benjamin Schoch, Ingmar Kallfass, P. Szriftgiser, Malek Zegaoui, Mohammed Zaknoune, Francois Danneville, Guillaume Ducournau

In this article we present a new method to measure the third-order intercept point (IP3) of a 300 GHz medium power amplifier MMIC based on III-V technology in an on-wafer measurement setup. The extraction was carried out using a uni-travelling carrier photodiode as the input signal source. Taking…

15th European Microwave Integrated Circuits Conference, Session EuMIC12 - Design and Characterisation Techniques,, Jan 2021, Utrecht, Netherlands. pp.209-212. ⟨hal-03348195⟩

Article dans une revue

GaN-based power devices: Physics, reliability, and perspectives

Matteo Meneghini, Carlo de Santi, Idriss Abid, Matteo Buffolo, Marcello Cioni, Riyaz Abdul Khadar, Luca Nela, Nicolò Zagni, Alessandro Chini, F Medjdoub, Gaudenzio Meneghesso, Giovanni Verzellesi, Enrico Zanoni, Elison Matioli

Over the last decade, gallium nitride (GaN) has emerged as an excellent material for the fabrication of power devices. Among the semiconductors for which power devices are already available in the market, GaN has the widest energy gap, the largest critical field, and the highest saturation velocity…

Journal of Applied Physics, 2021, 130 (18), pp.181101. ⟨10.1063/5.0061354⟩. ⟨hal-03421528⟩

Article dans une revue

Development of broadband high-frequency piezoelectric micromachined ultrasonic transducer array

Xu-Bo Wang, Le-Ming He, You-Cao Ma, Wen-Juan Liu, Wei-Jiang Xu, Jun-Yan Ren, Antoine Riaud, Jia Zhou

Piezoelectric micromachined ultrasonic transducers (PMUT) are promising elements to fabricate a two-dimensional (2D) array with a pitch small enough (approximately half wavelength) to form and receive arbitrary acoustic beams for medical imaging. However, PMUT arrays have so far failed to combine…

Sensors, 2021, 21 (5), pp.1823. ⟨10.3390/s21051823⟩. ⟨hal-03260141⟩

Communication dans un congrès

Bias-dependence of surface charge at low temperature in GaN self-switching diodes

E. Perez-Martin, I. Iniguez-De-La-Torre, T. Gonzalez, Christophe Gaquière, J. Mateos

In this work, with the help of a semi-classical two-dimensional Monte Carlo (MC) simulator, we study the DC current-voltage curves of Self-Switching Diodes (SSDs) fabricated on an AlGaN/GaN heterostructure from 100 K up to room temperature. Due to the very narrow channel of the SSDs, the presence…

13th Spanish Conference on Electron Devices, CDE 2021, Jun 2021, Sevilla, Spain. pp.90-93, ⟨10.1109/CDE52135.2021.9455737⟩. ⟨hal-03362256⟩

Communication dans un congrès

Bowl-shaped ZnO ultrasonic transducer for photoacoustic/ultrasonic multimode microscopy

J. Zhang, D. Zhao, D. Li, F. Tian, Wei-Jiang Xu, X. Wu

A bowl-shaped ultrasonic transducer is proposed for photoacoustic/ultrasonic multimode microscopy. The transducer uses zinc oxide (ZnO) as the piezoelectric material, which has a better electromechanical coefficient than flexible PVDF polymer and ensures the detection sensitivity. The ZnO film is…

2021 IEEE International Ultrasonics Symposium (IUS), Sep 2021, Xi'an, China. ⟨10.1109/IUS52206.2021.9593419⟩. ⟨hal-03541939⟩