Tailoring transient flexural-wave propagation in transformed plates
Abstract
The concept of transformation media has been primarily explored in the monochromatic regime, where device performance can deteriorate when applied to short pulses. Here, we review recent advances in tailoring transient flexural-wave propagation in transformed plates. Using the coordinate-transformation method, we implement practical solutions for a waveshifter, cloak, carpet cloak, and rotator for flexural waves, constructed from alternating thin layers of varying thicknesses within a plate. Time-resolved experiments, supported by full-wave simulations, confirm the effectiveness of these designs in bending, cloaking, and rotating flexural wave pulses while preserving their wavepackets. These results demonstrate how the traditional limitations of dispersion and impedance mismatch in transformed devices can be overcome.
Article Details
Journal Info
Journal of Applied Physics
American Institute of Physics
Authors (8)
Kun Tang
Chenni Xu
Department of Physics, The Jack and Pearl Resnick Institute for Advanced Technology, Bar-Ilan University 2 , Ramat-Gan 5290002,
Eitam Luz
Department of Physics, The Jack and Pearl Resnick Institute for Advanced Technology, Bar-Ilan University 2 , Ramat-Gan 5290002,
David Amram
Department of Physics, The Jack and Pearl Resnick Institute for Advanced Technology, Bar-Ilan University 2 , Ramat-Gan 5290002,
Luna Kadysz
Department of Physics, The Jack and Pearl Resnick Institute for Advanced Technology, Bar-Ilan University 2 , Ramat-Gan 5290002,
Jiaoqing Wang
Department of Physics, The Jack and Pearl Resnick Institute for Advanced Technology, Bar-Ilan University 2 , Ramat-Gan 5290002,
Sébastien Guenneau
Department of Physics, Imperial College London 3 , London SW7 2AZ,
Patrick Sebbah
Department of Physics, The Jack and Pearl Resnick Institute for Advanced Technology, Bar-Ilan University 2 , Ramat-Gan 5290002,