Publicaciones

• Article dans une revue

Collective acoustic modes in various two-dimensional crystals by ultrafast acoustics: theory and experiments

J.F. Robillard, Arnaud Devos, I. Roch-Jeune, P. A. Mante

We study the elastic properties of two-dimensional phononic crystals made of aluminum nanocube lattices. From the experimental point of view, collective modes resulting from the coupling between cubes inside the crystal are excited and time resolved using ultrafast acoustics. We derive a general...

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2008, 78, pp.064302. ⟨10.1103/PhysRevB.78.064302⟩. ⟨hal-00356644⟩

• Communication dans un congrès

Etude des courants Foucault dans un transformateur de faible puissance : une première approche de la modélisation des sous-stations d'alimentation ferroviaire

H. Ouaddi, S. Baranowski, G. Nottet, B. Demoulin

14ème Colloque International sur la Compatibilité Electromagnétique, CEM08, 2008, France. pp.224-226. ⟨hal-00361133⟩

• Communication dans un congrès

Etude exploratoire du rayonnement électromagnétique causé par les contacts électriques d'un connecteur blindé

Youssef Bouri, S. Baranowski, Jean Razafiarivelo, Lamine Kone, Bernard Demoulin

Les connecteurs, blindés ou non, peuvent constituer une source de problèmes de CEM (compatibilité électromagnétique) dans un système électronique complexe. L'analyse de leur comportement électromagnétique peut permettre de quantifier et de réduire ensuite ces effets gênants en prenant en...

14ème Colloque International sur la Compatibilité Electromagnétique, CEM08, 2008, Paris, France. pp.340-342. ⟨hal-00361129⟩

• Communication dans un congrès

Elastic characterization of ceramic balls using resonant ultrasound spectroscopy of spheroidal modes

F. Deneuville, Marc Duquennoy, Mohammadi Ouaftouh, Frédéric Jenot, Mohamed Ourak, S. Desvaux

Second ASA-EAA Joint Conference, ACOUSTICS'08, 2008, France. pp.4681-4686, ⟨10.1121/1.2935073⟩. ⟨hal-00361161⟩

• Article dans une revue

Crosstalk measurement of DOS-like switch using InP narrow deep-etched waveguides

Marie Lesecq, Maxime Beaugeois, Sophie Maricot, Jean-Pierre Vilcot

We report on the performance of an optical switch based on the use of narrow deep-etched InP waveguides. A DOS-like structure has been designed and fabricated. First characterization results are reported. They show an optical crosstalk value close to -20dB.

Optics Express, 2008, 16, pp.5181-5185. ⟨10.1364/OE.16.005181⟩. ⟨hal-00357303⟩

• Article dans une revue

Hysteretic magnetotransport in p-type AlxGa1-xAs heterostructures with In/Zn/Au ohmic contacts

B. Grbic, R. Leturcq, T. Ihn, K. Ensslin, G. Blatter, D. Reuter, A.D. Wieck

The two-terminal magneto-conductance of a hole gas in C-doped AlGaAs/GaAs heterostructures with ohmic contacts consisting of alloyed In/Zn/Au displays a pronounced hysteresis of the conductance around zero magnetic field. The hysteresis disappears above magnetic fields of around 0.5 T and...

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2008, 77, pp.245307-1-4. ⟨10.1103/PhysRevB.77.245307⟩. ⟨hal-00357350⟩

• Article dans une revue

Detecting single-electron tunneling involving virtual processes in real time

S. Gustavsson, M. Studer, R. Leturcq, T. Ihn, K. Ensslin, D.C. Driscoll, A.C. Gossard

We use time-resolved charge detection techniques to probe virtual tunneling processes in a double quantum dot. The process involves an energetically forbidden state separated by an energy δ from the Fermi energy in the leads. The non-zero tunneling probability can be interpreted as cotunneling,...

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2008, 78 (15), pp.155309. ⟨10.1103/PhysRevB.78.155309⟩. ⟨hal-00357337⟩

• Article dans une revue

Ultrafast electron-phonon decoupling in graphite

K. Ishioka, M. Hase, M. Kitajima, L. Wirtz, A. Rubio, H. Petek

We report the ultrafast dynamics of the 47.4 THz coherent phonons of graphite interacting with a photoinduced non-equilibrium electron-hole plasma. Unlike conventional materials, upon photoexcitation the phonon frequency of graphite upshifts, and within a few picoseconds relaxes to the stationary...

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2008, 77, pp.121402(R)-1-4. ⟨10.1103/PhysRevB.77.121402⟩. ⟨hal-00357772⟩

• Communication dans un congrès

Leakage cancellation in coded automotive radar

J. Zaidouni, P. Deloof, Atika Rivenq, Smail Niar, Jean-Michel Rouvaen

International Conference of Electrical and Electronics Engineering, ICEEE'08, 2008, Londres, United Kingdom. Paper ICEEE_77. ⟨hal-00360434⟩

• Communication dans un congrès

Modelling of radiofrequency MEMS bulk acoustic wave resonators with Legendre polynomial method

A. Raherison, F.E. Ratolojanahary, Jean-Etienne Lefebvre, L. Elmaimouni, Tadeusz Gryba

Second ASA-EAA Joint Conference, ACOUSTICS'08, 2008, Paris, France. ⟨hal-00362059⟩