Publications

Affichage de 2551 à 2560 sur 15761


  • Article dans une revue

Broadband sub-diffraction and ultra-high energy density focusing of elastic waves in planar gradient-index lenses

Jinfeng Zhao, Xiaodong Cui, Bernard Bonello, Bahram Djafari-Rouhani, Weitao Yuan, Yongdong P Pan, Jie Ren, Xiaoqing Zhang, Zheng Zhong

We demonstrate experimentally and theoretically the broadband sub-diffraction and ultra-high energy density focusing of elastic wave inside planar gradient-index (GRIN) plate lenses based on thickness variation. The full width at half maximum is ~0.40 times the minimum wavelength inside the lens λ0…

Journal of the Mechanics and Physics of Solids, 2021, 150, pp.104357. ⟨10.1016/j.jmps.2021.104357⟩. ⟨hal-03141945⟩

  • Article dans une revue

Pump-probe localization technique of varying solid contacts

Marina Terzi, Lynda Chehami, Maxime Farin, Emmanuel Moulin, Vladislav Aleshin, Nikolay Smagin, Julien de Rosny, Farouk Benmeddour

A baseline-free defect localization method in thin plates is proposed and tested. In this proof-of-concept work, a steel ball pressed against an aluminum plate is used to mimic a surface contact defect. The technique takes benefit of a repetitive nonlinear pump-probe interaction with a…

Journal of the Acoustical Society of America, 2021, 149 (5), pp.2943-2949. ⟨10.1121/10.0004820⟩. ⟨hal-03376735⟩

  • Article dans une revue

Fast X‐ray Nanotomography with Sub‐10 nm Resolution as a Powerful Imaging Tool for Nanotechnology and Energy Storage Applications

Vincent de Andrade, Viktor Nikitin, Michael Wojcik, Alex Deriy, Sunil Bean, Deming Shu, Tim Mooney, Kevin Peterson, Prabhat Kc, Kenan Li, Sajid Ali, Kamel Fezzaa, Doga Gürsoy, Cassandra Arico, Saliha Ouendi, David Troadec, Patrice Simon, Francesco de Carlo, Christophe Lethien

In the last decade, transmission X-ray microscopes (TXMs) have come into operation in most of the synchrotrons worldwide. They have proven to be outstanding tools for non-invasive ex and in situ 3D characterization of materials at the nanoscale across varying range of scientific applications.…

Advanced Materials, 2021, 33 (21), pp.2008653. ⟨10.1002/adma.202008653⟩. ⟨hal-03545058⟩

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