Publications

Affichage de 7841 à 7850 sur 16181


  • 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⟩

  • 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⟩

  • Communication dans un congrès

Doubly coded Costas signals for grating lobes mitigation

Nadjah Touati, Charles Tatkeu, Thierry Chonavel, Atika Rivenq

In this paper, a novel design scheme for radar signal is proposed. It is based on a modification of Costas codes design by increasing the frequency separation of frequency hops beyond the orthogonality condition. Indeed, Costas codes are well known for their good range-doppler properties. Their…

PIMRC 2013 : IEEE 24th International Symposium on Personal Indoor and Mobile RadioPersonal Indoor and Mobile Radio Communications, Sep 2013, Londres, United Kingdom. pp.481-485, ⟨10.1109/PIMRC.2013.6666184⟩. ⟨hal-00946823⟩

  • Brevet

Système de transmission sans fil

S. Foulon, Christophe Loyez, S. Pruvost, N. Rolland

N° de brevet: FR2976429 (A1). 2012. ⟨hal-00765132⟩

  • Communication dans un congrès

[Invité] Multi-excitons dans les nanostructures de semiconducteurs

Christophe Delerue, Guy Allan

Deuxième édition des Journées Nationales du Photovoltaïque, JNPV 2012, Dec 2012, Chantilly, France. ⟨hal-00797752⟩

  • Article dans une revue

An accurate determination of the surface energy of solid selenium

G. Guisbiers, S. Arscott, R. Snyders

Applied Physics Letters, 2012, 101 (23), pp.231606. ⟨10.1063/1.4769358⟩. ⟨hal-02345720⟩