Publicaciones

Affichage de 1321 à 1330 sur 16055


  • COMM

Tuning Photoacoustic Generation in Water with Nanotransducers via Laser Pulse Duration

M. Diego, M. Gandolfi, Stefano Giordano, F. Vialla, A. Crut, F. Vallée, P. Maioli, N. Del Fatti, F. Banfi

Abstract— The photoacoustic effect in liquids, generated by nanotransducers excited withshort laser pulses, offers high contrast imaging and promising medical treatment techniques.Understanding the role of the thermal boundary resistance (TBR) and the laser pulse durationin the generation mechanism...

PhotonIcs and Electromagnetics Research Symposium, also known as Progress In Electromagnetics Research Symposium (PIERS 2023), The Electromagnetics Academy (TEMA), Jul 2023, Prague, Czech Republic. ⟨hal-04115625⟩

  • POSTER

Electrothermal measurements of metal-semiconductor structures by scanning thermal microscopy and 3ω method

Juan Carlos Acosta Abanto, Mélanie Brouillard, Marc Dewitte, J.F. Robillard, Nicolas Horny, Pierre-Olivier Chapuis, Séverine Gomés

17th International Conference on Phonon Scattering in Condensed Matter (Phonons 2023), Jul 2023, Paris, France. ⟨hal-04310991⟩

  • COMM

Raman thermometry characterization of GeSbTe based phase change materials

Akash Patil, Yannick Le-Friec, Jury Sandrini, Roberto Simola, Simon Jeannot, Philippe Boivin, Emmanuel Dubois, J.F. Robillard

Phase change materials for embedded memory automotive applications are dynamically evolving with the aim of high temperature data retention [1]. This requires higher crystallization temperature and amorphous phase stability, which was achieved by increasing the Germanium content and doping with...

XVII Conference on Phonon Scattering in Condensed Matter, Phonons 2023, Jul 2023, Paris, France. ⟨hal-04188350⟩

  • COMM

Spectroscopie vibrationnelle à la nano-échelle en STEM : étude des effets d’altération spatiale sur la signature IR de l’astéroïde Ryugu

Sylvain Laforet, Hugues Leroux, Corentin Le Guillou, Francisco de la Peña, Maya Marinova, Damien Jacob, Jean-Christophe Viennet, Bahae-Eddine Mouloud, Daniel Hallatt, Adrien Teurtrie, Mario Pelaez Fernandez, Mike Walls, L. Galvao-Tizei, David Troadec

Le récent développement de microscopes électroniques monochromatés dédiés à la spectroscopie EELS à haute résolution met sur le devant de la scène la possibilité d’atteindre la gamme spectrale de l’infrarouge moyen avec, au mieux, une résolution spectrale de 40 cm-1 [1]. Cette technique ouvre une...

Colloque de la Société Française de Microscopie (SFµ), Jul 2023, ROUEN, France. ⟨hal-04267674⟩

  • COMM

Space weathering influence on Ryugu’s IR signature: insights from nanoscale vibrational spectroscopy in the STEM

Sylvain Laforet, Hugues Leroux, Corentin Le Guillou, Francisco de la Peña, Maya Marinova, Damien Jacob, Jean-Christophe Viennet, Bahae-Eddine Mouloud, Daniel Hallatt, Adrien Teurtrie, Mario Pelaez Fernandez, Mike Walls, L. Galvao-Tizei, David Troadec

JAXA’s Hayabusa2 mission brought back 5.4 g of material from the surface of the carbonaceous asteroid Ryugu. Some grains show evidence of a modified surface attributed to space-weathering effects [1], which result from solar-wind irradiation and/or micrometeoroid bombardment. In collaboration with...

Goldschmidt 2023, Jul 2023, LYON, France. ⟨hal-04267692⟩

  • ART

On the Practical Limitations for the Generation of Gunn Oscillations in Highly Doped GaN Diodes

S. García-Sánchez, M. Abou Daher, M. Lesecq, L. Huo, R. Lingaparthi, D. Nethaji, K. Radhakrishnan, I. Íñiguez-De-La-Torre, B. Vasallo, S. Pérez, T. González, J. Mateos

Planar Gunn diodes based on doped GaN active layers with different geometries have been fabricated and characterized. Gunn oscillations have not been observed due to the catastrophic breakdown of the diodes for applied voltages around 20–25 V, much below the bias theoretically needed for the onset...

IEEE Transactions on Electron Devices, 2023, 70 (7), pp.3447 - 3453. ⟨10.1109/TED.2023.3271610⟩. ⟨hal-04115233⟩