Publications

• Article dans une revue

The GaN yellow luminescence centre observed using optoelectronic modulation spectroscopy

C.H. Chiu, F. Omnes, Christophe Gaquière, P. Gibart, J.G. Swanson

Journal of Physics D: Applied Physics, 2002, 35, pp.609-614. ⟨hal-00250398⟩

• Article dans une revue

La sismique réflexion haute résolution, outil complémentaire du radar géologique pour la reconnaissance des souches superficielles

Bogdan Piwakowski, C. Leonard, Isam Shahrour

Cet article présente une application réussie de l'imagerie sismique réflexion haute résolution (SHR) pour la reconnaissance de couches superficielles. Des progrès récents dans ce domaine ont été accomplis en ce qui concerne les systèmes de mesure, le traitement des signaux et les techniques d…

Revue française de Géotechnique, 2002, 101, pp.23-34. ⟨hal-00140306⟩

• Article dans une revue

Electrical characterization of plate piezoelectric transducers bonded to a finite substrate

Y. Deblock, Pierre Campistron, M. Lippert, C. Bruneel

Journal of the Acoustical Society of America, 2002, 111, pp.2681-2685. ⟨hal-00149902⟩

• Article dans une revue

Detection of chemical damage in concrete using ultrasound

S. Ould Naffa, Marc Goueygou, Bogdan Piwakowski, François Buyle-Bodin

This research deals with a non-destructive method for characterizing the degraded cover of concrete structures using high-frequency ultrasound (0.5–1 MHz). Although such a frequency range is unusual in civil engineering, it is well suited to the kind of defect to be detected, as it corresponds to a…

Ultrasonics, 2002, 40 (1-8), pp.247-251. ⟨10.1016/S0041-624X(02)00146-4⟩. ⟨hal-00140147⟩

• Article dans une revue

Assessment of broadhand ultrasonic attenuation measurements in inhomogeneous media

Marc Goueygou, Bogdan Piwakowski, S. Ould Naffa, François Buyle-Bodin

In this paper, we address the problem of evaluating the acoustic attenuation of “difficult” media, i.e. highly attenuating and scattering media. In a broadband, through transmission setup, the signals acquired from such media are characterized by a poor signal-to-noise ratio. Therefore, an accurate…

Ultrasonics, 2002, 40 (1-8), pp.77-82. ⟨10.1016/S0041-624X(02)00094-X⟩. ⟨hal-00140145⟩

• Communication dans un congrès

Détermination de caractéristiques I(V) en régime dynamique grand signal de transistors HEMTs AlGaN/GaN sur substrat saphir

N. Vellas, Christophe Gaquière, Y. Guhel, B. Boudart, D. Ducatteau, E. Delos, M.A. Poisson, Jean-Claude de Jaeger

3ème Ecole Thématique CNRS : Matériaux Nitrures d'Eléments III, 2002, La Plagne, France. ⟨hal-00149715⟩

• Communication dans un congrès

New microwave radiometric mammography for the characterization of breast tumors

Bertrand Bocquet, J.C. van de Velde, E. Constant

Proceedings of the 2nd European Medical and Biological Engineering Conference, EMBEC 2002, 2002, Vienna, Austria. ⟨hal-00148622⟩

• Article dans une revue

Electrical and optical characterizations by prism-coupling method of PZT deposited in-situ by sputtering

El Hadj Dogheche, Denis Remiens, G. Velu

Vacuum, 2002, 66, pp.1-8. ⟨hal-00250392⟩

• Communication dans un congrès

Optimisation of abrupt emitter-base junction for heavily Be-doped InP/In0.53Ga0.47As heterojunction bipolar transistor

E. Lefebvre, M. Zaknoune, F. Mollot

14th Indium Phosphide and Related Materials Conference, IPRM 2002, 2002, Sweden. pp.615-618. ⟨hal-00250210⟩

• Article dans une revue

Dielectric, ferroelectric and piezoelectric properties of sputtered PZT thin films on Si substrates : influence of film thickness and orientation

T. Haccart, Eric Cattan, Denis Remiens

Semiconductor Physics, Quantum Electronics & Optoelectronics, 2002, 5, pp.78-88. ⟨hal-00250395⟩