Browsing by Author "Maurel, Agnès"

Now showing items 1-7 of 7

    • Classical homogenization to analyse the dispersion relations of spoof plasmons with geometrical and ... 
      Mercier, J.-F.; Cordero Garayar, María Luisa; Félix, S.; Ourir, A.; Maurel, Agnès (Royal Society Publishing, 2015)
      We show that the classical homogenization is able to describe the dispersion relation of spoof plasmons in structured thick interfaces with periodic unit cell being at the subwavelength scale. This is because the interface ...
    • Interaction of a surface wave with a dislocation 
      Maurel, Agnès; Pagneux, Vincent; Barra de la Guarda, Felipe; Lund Plantat, Fernando (2007)
      The scattering of a surface wave by a pinned edge dislocation in a semi-infinite, homogeneous, isotropic, three-dimensional elastic solid is investigated analytically and numerically. An incident wave excites the dislocation ...
    • Propagation of elastic waves through polycrystals: the effects of scattering from dislocation arrays 
      Maurel, Agnès; Pagneux, Vincent; Boyer, Denis; Lund Plantat, Fernando (ROYAL SOCIETY, 2006-09-08)
      We address the problem of an elastic wave coherently propagating through a two-dimensional polycrystal. The main source of scattering is taken to be the interaction with grain boundaries that are in turn modelled as line ...
    • Propagation of elastic waves through textured polycrystals: application to ice 
      Maurel, Agnès; Lund Plantat, Fernando; Montagnat, Maurine (Royal Society Publishing, 2015)
      The propagation of elastic waves in polycrystals is revisited, with an emphasis on configurations relevant to the study of ice. Randomly oriented hexagonal single crystals are considered with specific, nonuniform, probability ...
    • Surface acoustic waves in interaction with a dislocation 
      Maurel, Agnès; Pagneux, Vincent; Barra de la Guarda, Felipe; Lund Plantat, Fernando (ELSEVIER, 2010)
      A surface acoustic wave can interact with dislocations that are close to the surface. We characterize this interaction and its manifestations as scattered surface acoustic waves for different orientations with respect ...
    • Tuning the wavelength of spoof plasmons by adjusting the impedance contrast in an array of penetrable inclusions 
      Cordero Garayar, María Luisa; Maurel, Agnès; Mercier, J.-F.; Félix, S.; Barra de la Guarda, Felipe (Amer Inst Physics, 2015)
      While spoof plasmons have been proposed in periodic arrays of sound-hard inclusions, we show that they also exist when inclusions are penetrable. Moreover, we show that their wavelength can be tuned by the impedance mismatch ...
    • The Use of Ultrasound to Measure Dislocation Density 
      Barra de la Guarda, Felipe; Espinoza González, Rodrigo; Fernández, Henry; Lund Plantat, Fernando; Maurel, Agnès; Pagneux, Vincent (The Minerals, Metals & Materials Society, 2015)
      Dislocations are at the heart of the plastic behavior of materials yet they are very difficult to probe experimentally. Lack of a practical nonintrusive measuring tool for, say, dislocation density, seriously hampers ...