Publications

Affichage de 6911 à 6920 sur 16278


  • Article dans une revue

Narrow linewidth tunable terahertz radiation by photomixing without servo-locking

Antoine Rolland, Guillaume Ducournau, Gwennaël Danion, Goulc'Hen Loas, Marc Brunel, Alexandre Beck, Fabio Pavanello, Emilien Peytavit, Tashin Akalin, Mohammed Zaknoune, Jean-Francois Lampin, François Bondu, Marc Vallet, Pascal Szriftgiser, Denis Bacquet, Mehdi Alouini

A beatnote, tunable from dc to 1 THz, provided by a dual-frequency laser is used to feed an unitravelling carrier photodiode in order to produce a highly coherent THz signal radiated by a transverse-electromagnetic-horn antenna. The THz signal is detected and analyzed by a subharmonic mixer coupled…

IEEE Transactions on Terahertz Science and Technology, 2014, 4 (2), pp.260-266. ⟨10.1109/TTHZ.2013.2296144⟩. ⟨hal-00941862⟩

  • Communication dans un congrès

Characterization of multi-layered nanopore structure

Xiaokun Ding, Nicolas Tiercelin, Philippe Pernod, Vladimir Preobrazhensly, Yujun Song, Alexey Klimov

Hybridization of nanostructures opens new avenues for the synthesis of nano-architectures with multi-function and novel physicochemical properties. In this paper, we developed nanosphere template assisted physical vapor deposition to fabricate ordered multi-layered nanostructures utilizing Ag/…

17èmes Journées Nationales du Réseau Doctoral en Micro-Nanoélectronique, JNRDM 2014, 2014, Villeneuve d'Ascq, France. 3 p. ⟨hal-01020258⟩

  • Communication dans un congrès

Band gap formation and elastic wave transmission in two-dimentional surface phononic crystal

Sergey Yankin, Abdelkrim Talbi, Yu Du, Jean-Claude Gerbedoen, Vladimir Preobrazhensky, Philippe Pernod, Olivier Bou Matar

Using finite element method analysis of surface acoustic wave (SAW) propagation in the phononic crystal in a form of periodic lattice from nickel pillars, located on a piezoelectric substrate of Y+128°-cut LiNbO3, has been conducted. Amplitude and phase characteristics of SAW propagation through…

17èmes Journées Nationales du Réseau Doctoral en Micro-Nanoélectronique, JNRDM 2014, 2014, Villeneuve d'Ascq, France. 4 p. ⟨hal-01018435⟩

  • Communication dans un congrès

Image and many-body effects in ultra-thin gate insulator MOSFET with In0.53Ga0.47As channel material and their influence on gate leakage current

Gabriel Mugny, D. Rideau, F. Triozon, Yann-Michel Niquet, F.G. Pereira, A. Soussou, I. Duchemin, D. Garetto, C. Tavernier, H. Jaouen, Christophe Delerue

We study the influence of many-body and image force corrections on charge distribution, threshold voltage and tunnel current in fully-depleted silicon-on-insulator (FDSOI) ultra-thin gate insulator MOSFETs. We show that image correction slightly increases threshold voltage in Si MOSFETs and that…

17èmes Journées Nationales du Réseau Doctoral en Micro-Nanoélectronique, JNRDM 2014, 2014, Villeneuve d'Ascq, France. 5 p. ⟨hal-01020291⟩

  • Communication dans un congrès

Electrooptic and converse-piezoelectric properties of epitaxial GaN/Si structures for optoelectronic applications

Mireille Cuniot-Ponsard, Irma Saraswati, S.-M. Ko, Mathieu Halbwax, Y.-H. Cho, N.-R. Poespawati, El Hadj Dogheche

In order to take advantage in all-optic optoelectronic devices, we have investigated the optical and piezoelectric properties of GaN films deposited on (111) silicon. Films are epitaxially grown by MOCVD, thanks to a buffer made of (Al, Ga) N intermediate layers [1]. Structural properties of GaN…

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium K - Challenges for group III nitride semiconductors for solid state lighting and beyond, May 2014, Lille, France. ⟨hal-00961405⟩

  • Article dans une revue

Evaluation de la peau du béton à l'aide de la technique des ondes ultrasonores de surface

Bogdan Piwakowski, Jean-Paul Balayssac, Géraldine Villain, Vincent Garnier, Mariusz Kaczmarek, Radoslaw Drelich

Concrete cover degradation is induced by aggressive agents in ambiance, chemicals, moisture, or temperature variations. Due to these degradations, a thin inhomogeneous surface layer usually appears. Its porosity and its elastic modulus are different from the properties of deeper sound concrete.…

Annales du Bâtiment et des travaux publics, 2014, Partie 1 - Évaluation non destructive des matériaux, 66 (1-3), pp.83-88. ⟨hal-03589192⟩

  • Communication dans un congrès

[Invited] A microwave induced remote afterglow reactor for the deposition of organosilicon plasma polymers

Garrett Curley

Workshop on Nanoscale Processing for MEMS and NEMS, 2014, Villeneuve d'Ascq, France. ⟨hal-00976623⟩

  • Article dans une revue

Disorder-perturbed Landau levels in high-electron-mobility epitaxial graphene

Simon Maëro, Abderrezak Torche, Thanyanan Phuphachong, Emiliano Pallecchi, Abdelkarim Ouerghi, Robson Ferreira, Louis-Anne de Vaulchier, Yves Guldner

We show that the Landau levels in epitaxial graphene in the presence of localized defects are significantly modified compared to those of an ideal system. We report on magnetospectroscopy experiments performed on high-quality samples. Besides typical interband magneto-optical transitions, we…

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2014, 90, pp.195433. ⟨hal-01156613⟩