Publications

• Communication dans un congrès

Compact nonlinear modeling for GaN-based power amplifier design

Christophe Gaquière, V. Di Giacomo

IEEE MTT-S International Microwave Symposium, IMS 2011, Workshop WFC - The design flow of microwave amplifiers : Challenges and future trends, 2011, Baltimore, MD, United States. ⟨hal-00807596⟩

• Communication dans un congrès

Imaging techniques for direct defect analysis in SC diamonds : what scanning electron microscopy and cathodoluminescence can ultimately reveal

P.N. Volpe, S. Saada, Nicolas Tranchant, Jean-Charles Arnault, A. Soltani, F. Donatini, P. Bergonzo

16th International Hasselt Diamond Workshop, SBDD XVI, 2011, Hasselt, Belgium. ⟨hal-00807605⟩

• Article dans une revue

Milliwatt-level output power in the sub-terahertz range generated by photomixing in a GaAs photoconductor

Emilien Peytavit, Sylvie Lepilliet, Francis Hindle, Christophe Coinon, Tahsin Akalin, Guillaume Ducournau, Gaël Mouret, Jean-Francois Lampin

It is shown from accurate on-wafer measurement that continuous wave output powers of 1.2 mW at 50 GHz and 0.35 mW at 305 GHz can be generated by photomixing in a low temperature grown GaAs photoconductor using a metallic mirror Fabry-Pérot cavity. The output power is improved by a factor of about…

Applied Physics Letters, 2011, 99, pp.223508-1-3. ⟨10.1063/1.3664635⟩. ⟨hal-00783534⟩

• Article dans une revue

One-dimensional magnonic circuits with size-tunable band gaps and selective transmission

Bahram Djafari-Rouhani, Housni Al-Wahsh, Abdellatif Akjouj, L. Dobrzynski

We present a review of our theoretical calculations about magnon transport in quasi-one-dimensional (1D) magnonic circuits constituted by waveguides coupled to side resonators. Phenomena such as the existence of band gaps, rejective and selective transmissions and Fano resonances will be discussed…

Journal of Physics: Conference Series, 2011, 303, pp.012017-1-10. ⟨10.1088/1742-6596/303/1/012017⟩. ⟨hal-00795898⟩

• Article dans une revue

Time reversed acoustics techniques for elastic imaging in reverberant and nonreverberant media : an experimental study of the chaotic cavity transducer concept

B. van Damme, K. van den Abeele, Y.F. Li, Olivier Bou Matar

In view of emerging imaging technologies based on the combination of Time Reversed Acoustics (TRA) with Nonlinear Elastic Wave Spectroscopy (NEWS) for the detection and localization of micro-damage in solids, we have investigated the benefits of chirped source signal excitation, inverse filtering…

Journal of Applied Physics, 2011, 109 (10), pp.104910. ⟨10.1063/1.3590163⟩. ⟨hal-00639860⟩

• Article dans une revue

Magnetic field modulated dielectric relaxation behavior of Pt/BiScO3-PbTiO3/La0.7Sr0.3MnO3 heterostructure in metal-insulator transition region : an equivalent-circuit method

J.Y. Zhu, J. Yang, W. Bai, C.G. Duan, S. Zhang, G.S. Wang, X.L. Dong, Denis Remiens, X.D. Tang

Utilizing temperature and magnetic field dependent dielectric spectroscopy, two different dielectric relaxation processes, both accompanied with prominent positive magnetodielectric (MD) effects, were observed in Pt/BiScO3-PbTiO3/La0.7Sr0.3MnO3 (Pt/BSPT/LSMO) heterostructure. An equivalent circuit…

Journal of Applied Physics, 2011, 110 (11), pp.114118. ⟨10.1063/1.3667289⟩. ⟨hal-00783491⟩

• Article dans une revue

Fluctuation theorem and microreversibility in a quantum coherent conductor

S. Nakamura, Y. Yamauchi, M. Hashisaka, K. Chida, K. Kobayashi, T. Ono, R. Leturcq, K. Ensslin, K. Saito, Y. Utsumi, A.C. Gossard

Mesoscopic systems provide us a unique experimental stage to address nonequilibrium quantum statistical physics. By using a simple tunneling model, we describe the electron exchange process via a quantum coherent conductor between two reservoirs, which yields the fluctuation theorem (FT) in…

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2011, 83 (15), pp.155431. ⟨10.1103/PhysRevB.83.155431⟩. ⟨hal-00597077⟩

• Article dans une revue

Moving liquids with light: Photoelectrowetting on semiconductors

S. Arscott

By linking semiconductor physics and wetting phenomena a brand new effect termed “photoelectrowetting-on-semiconductors” is demonstrated here for a conducting droplet resting on an insulator-semiconductor stack. Optical generation of carriers in the space-charge region of the underlying…

Scientific Reports, 2011, 1 (1), pp.184. ⟨10.1038/srep00184⟩. ⟨hal-02345758⟩

• Thèse

Propagation d'ondes acoustiques dans les milieux à forte porosité, Propagation of acoustic waves in a strong porosity media

Georges Freiha

The essential work of this thesis is the characterization of the elastic coefficients of a porous medium using ultrasonic waves. A bibliographic study is presented at the beginning of the thesis summarizing previous works in this domain, particularly about propagation models of elastics waves.…, Le travail présenté dans cette thèse porte essentiellement sur la caractérisation des constantes élastiques de la matrice poreuse d’un milieu poreux à porosité ouverte par ondes ultrasonores. Une étude bibliographique présente une synthèse des travaux réalisés dans ce domaine, plus particulièrement…

Sciences de l'ingénieur [physics]. Université de Valenciennes et du Hainaut-Cambrésis, 2010. Français. ⟨NNT : 2010VALE0049⟩. ⟨hal-00572741⟩

• Thèse

Contribution à la modélisation des interférences dans les systèmes cellulaires, A contribution to the modelization of the interference in wireless cellular systems

Benoît Pijcke

Un point commun à l'ensemble des réseaux sans fil --- qu'ils soient de type cellulaire ou ad-hoc --- réside dans le fait que la puissance émise par chacun des émetteurs du réseau se propage dans l'espace sur des distances relativement importantes. Ainsi, la puissance reçue par chaque…, A common point of all wireless networks --- wether they are of cellular or ad-hoc type --- is that the power emitted by each of the transmitting nodes of the network propagates through space along relatively important distances. So, the power received by each receiver experiences interference.…

Sciences de l'ingénieur [physics]. Université de Valenciennes et du Hainaut-Cambrésis, 2010. Français. ⟨NNT : 2010VALE0054⟩. ⟨hal-00572721⟩