Publicaciones

• Article dans une revue

Airway reopening through catastrophic events in a hierarchical network

Michael Baudoin, Yu Song, Paul Manneville, Charles N. Baroud

When you reach with your straw for the final drops of a milkshake, the liquid forms a train of plugs that flow slowly initially because of the high viscosity. They then suddenly rupture and are replaced with a rapid airflow with the characteristic slurping sound. Trains of liquid plugs also are...

Proceedings of the National Academy of Sciences of the United States of America, 2013, 110 (3), pp.859-864. ⟨10.1073/pnas.1211706110⟩. ⟨hal-00795952⟩

• Article dans une revue

Planning the electron traffic in semiconductor networks: A mesoscopic analog of the Braess paradox encountered in road networks

Serge Huant, S. Baltazar, Peng Liu, Hermann Sellier, B. Hackens, F. Martins, Vincent Bayot, X. Wallart, L. Desplanque, M. G. Pala

By combining quantum simulations of electron transport and scanning-gate microscopy, we have shown that the current transmitted through a semiconductor two-path rectangular network in the ballistic and coherent regimes of transport can be paradoxically degraded by adding a third path to the network...

AIP Conference Proceedings, 2013, 1566, pp.229. ⟨10.1063/1.4848369⟩. ⟨hal-00933050⟩

• Article dans une revue

Assisted Channel Estimation with Dynamic Allocation Pilot Subcarriers for OFDM Communications

Boudali Ouarzazi, Atika Rivenq, Iyad Dayoub, Marion Berbineau

In this paper, a transmission system based on OFDM (Orthogonal Frequency Division Multiplexing) technique and channel estimation is proposed. The idea is to enhance the assisted channel estimation without data rate loss. A solution based on frequency diversity is proposed. With the same number of...

Wireless Engineering and Technology, 2013, 04 (04), pp.155-160. ⟨10.4236/wet.2013.44023⟩. ⟨hal-03383023⟩

• Article dans une revue

Scanning Gate Spectroscopy of transport across a Quantum Hall Nano-Island

F. Martins, S. Faniel, B. Rosenow, M. G. Pala, Hermann Sellier, Serge Huant, L. Desplanque, X. Wallart, Vincent Bayot, B. Hackens

We explore transport across an ultra-small Quantum Hall Island (QHI) formed by closed quan- tum Hall edge states and connected to propagating edge channels through tunnel barriers. Scanning gate microscopy and scanning gate spectroscopy are used to first localize and then study a single QHI near a...

New Journal of Physics, 2013, 15, pp.013049. ⟨10.1088/1367-2630/15/1/013049⟩. ⟨hal-00932990⟩

• Article dans une revue

Giant rotary power of a fishnet-like metamaterial

S.X. Wang, F. Garet, Eric Lheurette, M. Astic, J.L. Coutaz, D. Lippens

We show experimentally and numerically that cholesteric-type metal-dielectric structures, made of twisted sub-wavelength hole elliptical–shaped arrays, exhibit strong optical activity and circular dichroism. The experimental demonstration is carried out with terahertz time-domain spectroscopy...

APL Materials, 2013, 1, pp.032116-1-6. ⟨10.1063/1.4821627⟩. ⟨hal-00871905⟩

• Article dans une revue

The source of the threading dislocation in GaSb/GaAs hetero-structures and their propagation mechanism

Y. Wang, P. Ruterana, S. Kret, S. El Kazzi, L. Desplanque, X. Wallart

Applied Physics Letters, 2013, 102, pp.052102-1-5. ⟨10.1063/1.4790296⟩. ⟨hal-00795953⟩

• Communication dans un congrès

Effect of manganese concentration in the Cd1-xMnxTe/CdTe tandem structure on photovoltaic energy conversion

Abdelkader Aissat, M. El Bey, M. Fathi, Jean-Pierre Vilcot

The photovoltaic electricity is obtained by direct conversion of sunlight into electricity by solar cells. The objective of this work is the study and simulation of a Tandem photovoltaic structure based on Cd1-xMnxTe as top material cell. This paper describes the optimization of energy efficiency...

TerraGreen 13 International Conference 2013 - Advancements in Renewable Energy and Clean Environment, 2013, Beirut, Lebanon. pp.401-407, ⟨10.1016/j.egypro.2013.07.046⟩. ⟨hal-00877761⟩

• Article dans une revue

Ultrafast short-range disordering of femtosecond-laser-heated warm dense aluminum

P. M. Leguay, A. Levy, B. Chimier, F. Deneuville, D. Descamps, C. Fourment, C. Goyon, S. Hulin, S. Petit, O. Peyrusse, J. J. Santos, P. Combis, B. Holst, V. Recoules, P. Renaudin, L. Videau, F. Dorchies

We have probed, with time-resolved x-ray absorption near-edge spectroscopy (XANES), a femtosecond-laser-heated aluminum foil with fluences up to 1 J/cm2. The spectra reveal a loss of the short-range order in a few picoseconds. This time scale is compared with the electron-ion equilibration time,...

Physical Review Letters, 2013, 111 (24), ⟨10.1103/PhysRevLett.111.245004⟩. ⟨hal-01561843⟩

• Chapitre d'ouvrage

Generation of a selected Lamb mode by piezoceramic transducers : application to nondestructive testing of aeronautical structures

Farouk Benmeddour, Emmanuel Moulin, Jamal Assaad, S. Djili

Ebrahimi F. Piezoelectric materials and devices - Practice and applications, InTech, chapter 5, 93-111, 2013, ISBN 978-953-51-1045-3. ⟨10.5772/54582⟩. ⟨hal-00800665⟩

• Article dans une revue

DC, RF and noise performance of InAs/AlSb HEMTs with in situ CVD SiNx-film for early-protection against oxidation

Giuseppe Moschetti, Eric Lefebvre, Martin Fagerlind, Per-Åk Nilsson, L. Desplanque, Xavier Wallart, Jan Grahn

A new method for avoiding air exposure of the mesa-floor during processing of shallow-mesa InAs/AlSb HEMTs is reported. The method is based on the in situ chemical vapor deposition (CVD) of a SiNx-film, right after the shallow-mesa dry-etch process. The in situ CVD method allows also growing a...

Solid-State Electronics, 2013, 87, pp.85-89. ⟨10.1016/j.sse.2013.06.008⟩. ⟨hal-00871902⟩