Publications

Affichage de 5281 à 5290 sur 16261


  • Article dans une revue

Silicon photonics targets terahertz region

Guillaume Ducournau

Nature Photonics, 2018, 12 (10), pp.574-575. ⟨10.1038/s41566-018-0242-0⟩. ⟨hal-03183513⟩

  • Article dans une revue

GaN-Based Laser Wireless Power Transfer System

Carlo de Santi, Matteo Meneghini, Alessandro Caria, Ezgi Dogmus, Malek Zegaoui, F Medjdoub, Boris Kalinic, Tiziana Cesca, Gaudenzio Meneghesso, Enrico Zanoni

The aim of this work is to present a potential application of gallium nitride-based optoelectronic devices. By using a laser diode and a photodetector, we designed and demonstrated a free-space compact and lightweight wireless power transfer system, whose efficiency is limited by the efficiency of…

Materials, 2018, 11 (1), pp.153. ⟨10.3390/ma11010153⟩. ⟨hal-02356738⟩

  • Article dans une revue

Evidence of optically induced degradation in gallium nitride optoelectronic devices

Carlo de Santi, Alessandro Caria, Nicola Renso, Ezgi Dogmus, Malek Zegaoui, F Medjdoub, Gaudenzio Meneghesso, Enrico Zanoni, Matteo Meneghini

We provide experimental evidence that gallium-nitride-based optoelectronic devices can be affected by a photon-driven degradation mechanism unrelated to catastrophic optical damage. Any role of current in such degradation is excluded by stress tests under laser irradiation in the open-circuit…

Applied Physics Express, 2018, 11 (11), pp.111002. ⟨10.7567/APEX.11.111002⟩. ⟨hal-02356737⟩

  • Communication dans un congrès

Analytical model for the energy harvesting of a spherical sensor from ambient vibrations

Daher Diab, Fabrice Lefebvre, Georges Nassar, Nikolay Smagin, Adnan Naja, Fawaz El Omar

In this work an analytical model for the energy harvesting of an acoustic spherical sensor has been developed in the context to make it autonomous. Our spherical sensor is composed of two half-spheres of Plexiglas and a piezoelectric ring of PZ26 that can be used as exciter or sensor. For the…

1st International Conference on Energy, Power, Petroleum and Petrochemical Engineering, E3PE 2017, Apr 2017, Beirut, Lebanon. pp.62-66, ⟨10.1051/matecconf/201817102006⟩. ⟨hal-03563959⟩

  • Communication dans un congrès

Non Destructive Evaluation of concrete material properties for nuclear power plant survey: results in the laboratory and on the VeRCoRS mock-up

Odile Abraham, Jean François Chaix, V Garnier, Jean-Marie Henault, Jean-Baptiste Legland, Charles Ciccarone, Hognon Sogbossi, Géraldine Villain, Bogdan Piwakowski, J Verdier, Olivier Durand, G Gugole, S Rakotonarivo, Xavier Derobert, R Drelich

Pre-stressed concrete nuclear power plant containment vessel is the third barrier in case of an accident so that quantifying concrete properties with Non Destructive Evaluation (NDE) is a continuing goal. This includes the mapping of the following concrete properties: elastic modulus, water…

NDE/NDT, Structural Materials Technology for Highways and Bridges (SMT) and the International Symposium on Non-Destructive Testing in Civil Engineering (NDT-CE) 2018, Aug 2018, New Brunswick, United States. 9p. ⟨hal-02048420⟩