Publications

• THESE

Optimisation des formes d'ondes d'un radar d'aide à la conduite automobile, robustes vis-à-vis d'environnements électromagnétiques dégradés, Optimization of automotive radar waveforms in degraded electromagnetic environments

Nadjah Touati

Divers radars sont développés pour des besoins d’aide à la conduite automobile de sécurité mais aussi de confort. Ils ont pour but de détecter la présence d’obstacles routiers afin d’éviter d’éventuelles collisions. La demande actuelle en termes de capteurs radars pour l’automobile connaît une…, Several driver assistance radars are developed for security and comfort requirements. Their goal is among others to detect the presence of obstacles for collision avoidance. The current demand in terms of automotive radar sensors experience a significant growth and the technologies being employed…

Traitement du signal et de l'image [eess.SP]. Université de Valenciennes et du Hainaut-Cambresis, 2015. Français. ⟨NNT : 2015VALE0031⟩. ⟨tel-01319582⟩

• ART

Resonant and nonlocal properties of phononic metasolids

Daniel Torrent, Yan Pennec, Bahram Djafari-Rouhani

We derive a general theory of effective properties in metasolids based on phononic crystals with low frequency resonances. We demonstrate that in general these structures need to be described by means of a frequencydependent and nonlocal anisotropic mass density, stiffness tensor and a third-rank…

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2015, 92 (17), ⟨10.1103/PhysRevB.92.174110⟩. ⟨hal-02504875⟩

• POSTER

Influence of surface treatments on the electrical and optical properties of SnO2-Ga2O3 thin films for UV wavelengths applications

Alban Maertens, Samuel Margueron, Frédéric Genty, Ouarda Legrani, Adulfas Abrutis, Thierry Belmonte, Pascal Boulet, Jaafar Ghanbaja, Abdelkrim Talbi

Ga2O3 is a wide band gap transparent conductive oxide (TCO) currently investigated for Ultra-Violet optroelectronic and photonic devices. In this study, 150nm- thick Ga2O3 - SnO2 layers (with different Sn doping) were grown on (0001) sapphire by MOCVD technique at a pressure of 10 Torr. The…

international Conference on Innovation in Thin Film Processing and Characterization, Nov 2015, Nancy, France. . ⟨hal-01277774⟩

• COMM

PZT array for passive guided wave tomography of extended defects using ambient elastic noise cross-correlations

Tom Druet, Bastien Chapuis, Jules Manfred, Guillaume Laffont, Emmanuel Moulin

Structural health monitoring (SHM) consists in embedding sensors in a structure like an aircraft or a naval ship in order to detect defects (for example cracks or corrosion in metallic materials or delamination in composite materials) before a serious fault occurs in the structure. Guided elastic…

7th International Symposium on NDT in Aerospace, Nov 2015, Bremen (GERMANY), Germany. 8 p. ⟨hal-04087534⟩

• ART

Experimental phase-advance in woven textile metasurface

Ludovic Burgnies, Cédric Cochrane, François Rault, Veronique Sadaune, Eric Lheurette, Vladan Koncar, Didier Lippens

Transmission with phase advance is experimentally evidenced in a woven metasurface made of metallic wires and dielectric yarns. Similar to the negative refraction in metamaterials, phase advance is analyzed with a retrieval procedure of effective medium parameters. It is shown that a quasi-unitary…

Applied Physics Letters, 2015, Applied Physics Letters, 107 (20), ⟨10.1063/1.4935986⟩. ⟨hal-04996817⟩

• COMM

Broadband Characteristics of Ultrahigh Responsivity of Asymmetric Dual-Grating-Gate Plasmonic Terahertz Detectors

Fuzuki Kasuya, Tetsuya Kawasaki, Shinya Hatakeyama, Stéphane Boubanga-Tombet, Tetsuya Suemitsu, Taiichi Otsuji, Guillaume Ducournau, Dominique Coquillat, Wojciech Knap, Yuma Takida, Hiromasa Ito, Hiroaki Minamide, Denis Fateev, Vyacheslav Popov, Yahya Moubarak Meziani, Akira Satou

We report on the intrinsic responsivity of an asymmetric dual-grating-gate plasmonic detector over 100 kV/W at 200 GHz and 50 kV/W at 300 GHz measured at room temperature with zero source-drain bias. We demonstrate that broadband characteristics of the responsivity depend much on the geometrical…

40th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2015, Aug 2015, Hong Kong, China. paper WS-45, ⟨10.1109/IRMMW-THz.2015.7327926⟩. ⟨hal-01336498⟩

• COMM

Retour d'expérience sur la mise en place d'un parefeu NG, Feedback after installing a nextgen firewall

Mickael Masquelin

9ème Journée Thématique « Sécu », Nov 2015, Villeneuve d'Ascq, France. ⟨hal-01639503⟩

• POSTER

Channel shortening equalizer through energy concentration for TH-UWB systems

Noureddine Benamara Benotmane, Sid Ahmed Elahmar, Iyad Dayoub

International Conference on Advanced Communication Systems and Signal Processing, ICOSIP 2015, Nov 2015, Tlemcen, Algeria. ⟨hal-03582994⟩

• POSTER

Conception d'ailes vibrantes pour un nano-drone mimant l'insecte

Damien Faux, Eric Cattan, Sébastien Grondel, Olivier Thomas, Jean-Bernard Paquet

5es Journées des Jeunes Chercheurs en Vibrations, Acoustique et Bruit, JJCAB 2015, Nov 2015, Besançon, France. ⟨hal-03571970⟩

• ART

Analogies between optical propagation and heat diffusion: applications to microcavities, gratings and cloaks

Claude Amra, David Petiteau, Myriam Zerrad, Sébastien Guenneau, Gabriel Soriano, Boris Gralak, Michel Bellieud, Denis Veynante, Nathalie Rolland

A new analogy between optical propagation and heat diffusion in heterogeneous anisotropic media has been proposed recently [S. Guenneau, C. Amra, and D. Veynante, Optics Express Vol. 20, 8207-8218 (2012)]. A detailed derivation of this unconventional correspondence is presented and developed. In…

Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015, 471 (2183), pp.20150143. ⟨10.1098/rspa.2015.0143⟩. ⟨hal-01279508⟩