Publications

Affichage de 2241 à 2250 sur 16058

COMM

Single focused-beam acoustical tweezers

Zhixiong Gong, Michael Baudoin

Single beam acoustical tweezers have seen rapid development for their potential applications in vitro and in vivo in different fields such as acoustofluidics, microrobotics, precision medicine, and so on. The first single beam acoustical tweezers used a focused beam in analogy with optical tweezers…

182nd Meeting of the Acoustical Society of America, May 2022, Denver, United States. pp.A121-A121, ⟨10.1121/10.0010845⟩. ⟨hal-03675710⟩

ART

Optically Pumped Terahertz Molecular Laser: Gain Factor and Validation up to 5.5 THz

Marie-Helene Mammez, Zachary Buchanan, Olivier Pirali, Marie-Aline Martin-Drumel, Joan Turut, Guillaume Ducournau, Sophie Eliet, Francis Hindle, S Barbieri, Pascale Roy, Gaël Mouret, Jean-Francois Lampin

Quantum cascade laser-pumped terahertz (THz) gas lasers are at the edge ofrevolutionizing THz science where powerful yet tunable sources have long beenlacking. Maybe one of the last remaining drawbacks to a wider use of theseinstruments lies in the lack of available databases of potentially lasing…

Advanced Photonics Research, 2022, 3, pp.2100263. ⟨10.1002/adpr.202100263⟩. ⟨hal-03538905⟩

ART

A survey of applied machine learning techniques for optical orthogonal frequency division multiplexing based networks

Hichem Mrabet, Elias Giacoumidis, Iyad Dayoub, Aymen Belghith

In this survey, we analyze the newest machine learning (ML) techniques applied in modern optical orthogonal frequency division multiplexing (O-OFDM) systems for access, core networks, and multi-channel transmission. From rudimentary to more advanced approaches, ML is proven to be a gold standard…

Transactions on emerging telecommunications technologies, 2022, 33, pp.e4400. ⟨10.1002/ett.4400⟩. ⟨hal-03507988⟩

ART

Composite Multiferroic Terahertz Emitter: Polarization Control via an Electric Field

Dinar Khusyainov, Sergei Ovcharenko, Arseniy Buryakov, A. Klimov, Philippe Pernod, V. Nozdrin, E. Mishina, A. Sigov, Vladimir L. Preobrazhensky, Nicolas Tiercelin

Electrical control of conjugate degrees of freedom in multiferroics provides the advantage of reducing energy consumption to femto- and even attojoules per switch in spintronics and memory devices. This is achieved through the development of technologies that make it possible to fabricate…

Physical Review Applied, 2022, 17 (4), pp.044025. ⟨10.1103/PhysRevApplied.17.044025⟩. ⟨hal-03649158⟩

COMM

Active holographic tweezers based on spiraling interdigitated transducers

Michael Baudoin, Roudy Al Sahely, Zhixiong Gong, Olivier Bou Matar, J-C Gerbedoen, Nikolay Smagin, Ravinder Chutani

Recently, our team demonstrated the selective manipulations of microparticles [Baudoin et al., Sci. Adv. 5, eaav1967 (2019)] and cells [Baudoin et al., Nat. Commun. 11, 4244 (2020)] in a standard microscopy environment with active holographic tweezers based on spiraling interdigitated transducers.…

182nd Meeting of the Acoustical Society of America, May 2022, Denver, United States. pp.A121-A121, ⟨10.1121/10.0010844⟩. ⟨hal-03675834⟩

ART

Deep learning based face beauty prediction via dynamic robust losses and ensemble regression

Fares Bougourzi, F. Dornaika, Abdelmalik Taleb-Ahmed

In the last decade, several studies have shown that facial attractiveness can be learned by machines. In this paper, we address Facial Beauty Prediction from static images. The paper contains three main contributions. First, we propose a two-branch architecture (REX-INCEP) based on merging the…

Knowledge-Based Systems, 2022, 242, pp.108246. ⟨10.1016/j.knosys.2022.108246⟩. ⟨hal-03666367⟩

ART

GaN Schottky diode on sapphire substrate for THz frequency multiplier applications

Giuseppe Di Gioia, Mohammed Samnouni, Vinay Kumar Chinni, Priyanka Mondal, Jeanne Treuttel, Malek Zegaoui, Guillaume Ducournau, Mohammed Zaknoune, Yannick Roelens

Gallium Nitride, because of its high breakdown field, and peak and saturated electron drift velocity, high chemical stability and high thermal conductivity, is a very promising material as candidate for Schottky varactor diodes for next-generation high-power frequency multipliers. Similarly to the…

Superlattices and Microstructures, 2022, 164, pp.107116. ⟨10.1016/j.spmi.2021.107116⟩. ⟨hal-03542163⟩

ART

2.45 GHz natural polymer‐based flexible bandpass filter exploiting laser structuring

Abdelghafour Sid, Pierre-Yves Cresson, Nicolas Joly, Flavie Braud, Benoit Genestie, Tuami Lasri

This article presents the realization of a bandpass filter on a flexible biopolymer substrate with a suitable fabrication process. We used copper adhesive tape and laser structuring to fabricate the filter based on a quasi-lumped microstrip structure. The filter characteristics are a central…

Microwave and Optical Technology Letters, 2022, 64 (4), pp.727-732. ⟨10.1002/mop.33194⟩. ⟨hal-03587344⟩

THESE

Acoustical tweezers based on acoustical vortices, for selective, 3D and contactless manipulation of micrometric particles and cells, Pinces acoustiques basées sur les vortex acoustiques pour la manipulation sélective, 3D et sans contact de particules micrométriques et de cellules

Roudy Al Sahely

Acoustical tweezers based on focused acoustical vortices open some tremendous perspectives for the in vitro and in vivo remote and selective manipulation of millimetric down to micrometric objects, with combined selectivity and applied forces out of reach with any other contactless manipulation…, Les pinces acoustiques basées sur les vortex acoustiques focalisées ouvrent de nouvelles perspectives pour la manipulation sans contact et sélective d’objets millimétriques à micrométriques, avec une sélectivité et des forces appliquées difficilement atteignables avec les autres méthodes. La…

Micro and nanotechnologies/Microelectronics. Université de Lille, 2022. English. ⟨NNT : 2022ULILN004⟩. ⟨tel-03892750⟩

ART

360° polarization control of terahertz spintronic emitters using uniaxial FeCo/TbCo 2 /FeCo trilayers

Pierre Koleják, Geoffrey Lezier, Kamil Postava, Jean-Francois Lampin, Nicolas Tiercelin, Mathias Vanwolleghem

Polarization control of THz light is of paramount interest for the numerous applications offered in this frequency range. Recent developments in THz spintronic emitters allow for a very efficient broadband emission, and especially unique is their ability of THz polarization switching through…

ACS photonics, 2022, 9 (4), pp.1274-1285. ⟨10.1021/acsphotonics.1c01782⟩. ⟨hal-03475335⟩