Publications

• Article dans une revue

Waves in periodic media : Fourier analysis shortcuts and physical insights, case of 2D phononic crystals

Samuel Dupont, Joseph Gazalet, Jean-Claude Kastelik

Phononic crystal is a structured media with periodic modulation of its physical properties that influences the propagation of elastic waves and leads to a peculiar behaviour, for instance the phononic band gap effect by which elastic waves cannot propagate in certain frequency ranges. The…

Journal of Physics: Conference Series, 2014, 2nd International Conference on Mathematical Modeling in Physical Sciences 2013 (IC-MSQUARE 2013) 1–5 September 2013, Prague, Czech Republic, 490 (1), pp.012120. ⟨10.1088/1742-6596/490/1/012120⟩. ⟨hal-00961500⟩

• Article dans une revue

Coherent THz communication at 200 GHz using a frequency comb, UTC-PD and electronic detection

Guillaume Ducournau, Y. Yoshimizu, S. Hisatake, F. Pavanello, Emilien Peytavit, Mohammed Zaknoune, T. Nagatsuma, Jean-Francois Lampin

A coherent terahertz (THz) link at 200 GHz, with a variable data rate up to 11 Gbit/s, featuring a very high sensitivity at the receiver, is investigated. The system uses a quasi-optic unitravelling carrier photodiode (UTC-PD) emitter and an electronic receiver. The coherent link relies on an…

• Communication dans un congrès

A 1D phoxonic crystal

J. Gomis-Bresco, D. Navarro-Urrios, Mourad Oudich, Said El-Jallal, A. Griol, D. Puerto, E. Chavez, Yan Pennec, Bahram Djafari-Rouhani, F. Alzina, A. Martínez, C.M. Sotomayor Torres

Simultaneous confinement of light and sound in the same cavity generates a strong phonon-photon interaction, known as optomechanical (OM) coupling. Several optomechanical systems provided already proof of concept demonstrations for enhanced telecommunication devices and sensors. And using OM…

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium D - Phonons and fluctuations in low dimensional structures, 2014, Lille, France. ⟨hal-00962402⟩

• Communication dans un congrès

Phosphorus-hyperdoped Si nanocrystals : a model for localized surface plasmon resonance

X. Pi, Christophe Delerue

It has been recently realized that semiconductor nanocrystals can be doped with point defects or impurities up to a very high level, sometimes above the bulk solubility limit. In parallel, hyperdoping has also emerged as a promising means to change the electrical and optical properties of Si. In…

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium X - Materials research for group IV semiconductors : growth, characterization and technological developments, 2014, Lille, France. ⟨hal-00961394⟩

• Communication dans un congrès

Integrated measurement platform for thermal conductivity measurements in thin-film crystalline silicon and silicon-germanium

Maciej Haras, Valeria Lacatena, Stéphane Monfray, J.F. Robillard, Thomas Skotnicki, Emmanuel Dubois

Thermoelectric conversion requires materials with low thermal conductivity k high electrical conductivity s and thermopower P. Performance of thermoelectric material is evaluated by the zT=P^2sT/k figure-of-merit. Bi2Te3 or Sb2Te3 are usually used near room temperature but they are harmful,…

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium BB - Materials by design for energy applications through theory and experiment, 2014, Lille, France. ⟨hal-00964577⟩

• Article dans une revue

F center in lithium fluoride revisited : comparison of solid-state physics and quantum-chemistry approaches

Ferenc Karsai, Paul Tiwald, Robert Laskowski, Fabien Tran, David Koller, Stefanie Gräfe, Joachim Burgdörfer, Ludger Wirtz, Peter Blaha

We revisit the theoretical description of the F color center in lithium fluoride employing advanced complementary ab initio techniques. We compare the results from periodic supercell calculations involving density-functional theory (DFT) and post-DFT techniques with those from the embedded-cluster…

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2014, 89, 125429, 12 p. ⟨10.1103/PhysRevB.89.125429⟩. ⟨hal-00968483⟩

• Communication dans un congrès

Digital radio frequency signal generation towards ultimate transmitters

Antoine Frappé

This invited paper exposes our latest developments in the field of digital transmitters by focusing on digital and mixed-signal processing blocks, such as delta-sigma modulators, high-speed interpolation filters and digital-to-RF converters. The goal is to demonstrate that radio-frequency signal…

2014 International Symposium on Fundamentals of Electrical Engineering (ISFEE), Nov 2014, Bucharest, Romania. pp.1-5, ⟨10.1109/ISFEE.2014.7050563⟩. ⟨hal-03377050⟩

• Communication dans un congrès

Polyaniline-carbon nanotubes composites - Based patch antenna

Z. Hamouda, J.-L. Wojkiewicz, A.A. Pud, B. Belaabed, S. Bergheul, T. Lasri

This paper presents the simulation and realization of a patch antenna made of composites based on Polyaniline (PANI) and carbon nanotubes (CNT). The antenna is designed to work at the frequency of 4.5 GHz; the dielectric substrates used is Rogers RT/duroid 5870 which has a dielectric permittivity…

8th European Conference on Antennas and Propagation, EuCAP 2014, Apr 2014, The Hague, Netherlands. pp.2197-2200, ⟨10.1109/EuCAP.2014.6902246⟩. ⟨hal-03538366⟩

• Communication dans un congrès

Fabrication et caractérisation DC de composant HEMTs In(Ga)AlN/GaN sur silicium

Léon-Thierry Okala, Marie Lesecq, Philippe Altuntas, Jean-Claude de Jaeger

Cet article présente un procédé de fabrication de transistors HEMTs InAlN/GaN et AlGaN/GaN, en lithographie optique, sur substrat Si(111). Les mesures de Hall et TLM ont permis d'évaluer la résistance de contact, la résistance carrée, la mobilité et la densité de porteurs. La caractérisation…

17èmes Journées Nationales du Réseau Doctoral en Micro-Nanoélectronique, JNRDM 2014, 2014, Villeneuve d'Ascq, France. 4 p. ⟨hal-01020314⟩

• Communication dans un congrès

Functionalized gold nanoparticles with electropolymerizable π-conjugated systems for a neuro-inspired memristive nanoparticle organic synapse-transistor

Ali Yassin, Maiténa Oçafrain, David Guérin, Stéphane Lenfant, Dominique Vuillaume, Philippe Blanchard, Jean Roncali

Nanoparticle Organic Memory Field-Effect Transistors (NOMFET) are molecule-based devices that exhibit the main behavior of a biological spiking synapse. This behavior is obtained by virtue of the combination of two properties of the NOMFET: the transconductance gain of the transistor and the memory…

Materials Research Society Spring Meeting, MRS Spring 2014, Symposium C - Synthesis and Processing of Organic and Polymeric Materials for Semiconductor Applications, 2014, San Francisco, CA, United States. ⟨hal-00966207⟩