567 citations · 1.9k across the 36 of their papers we have counts for
4 papers · 1 filter
Elastic metasurfaces for splitting SV- and P-waves in elastic solids
Xiaoshi Su, Zhaocheng Lu, Andrew N. Norris
Although recent advances have made it possible to manipulate electromagnetic and acoustic wavefronts with sub-wavelength metasurface slabs, the design of elastodynamic counterparts…
Loss Compensation in Time-Dependent Elastic Metamaterials
Daniel Torrent, William J. Parnell, Andrew N. Norris
Materials with properties that are modulated in time are known to display wave phenomena showing energy increasing with time, with the rate mediated by the modulation. Until now th…
Broadband focusing of underwater sound using a transparent pentamode lens
Xiaoshi Su, Andrew N. Norris, Colby W. Cushing +2
We report an inhomogeneous acoustic metamaterial lens based on spatial variation of refractive index for broadband focusing of underwater sound. The index gradient follows a modifi…
Wave propagation and homogenization in 2D and 3D lattices: a semi-analytical approach
A. A. Kutsenko, A. J. Nagy, X. Su +2
Wave motion in two- and three-dimensional periodic lattices of beam members supporting longitudinal and flexural waves is considered. An analytic method for solving the Bloch wave…