Dynamic cloaking of a diamond-shaped hole in elastic plate
Classical Physics
2023-08-02 v1 Applied Physics
Abstract
Invisibility cloaks for flexural waves have been mostly examined in the continuous-wave regime, while invisibility is likely to deteriorate for short pulses. Here, we propose the practical realization of a unidirectional invisibility cloak for flexural waves based on an area-preserving coordinate transformation. Time-resolved experiments reveal how the invisibility cloak deviates a pulsed plane-wave from its initial trajectory, and how the initial wavefront perfectly recombines behind the cloak, leaving the diamond-shaped hole invisible, notwithstanding the appearance of a forerunner. Three-dimensional full-elasticity simulations support our experimental observations.
Keywords
Cite
@article{arxiv.2209.11760,
title = {Dynamic cloaking of a diamond-shaped hole in elastic plate},
author = {Kun Tang and Eitam Luz and David Amram and Luna Kadysz and Sebastien Guenneau and Patrick Sebbah},
journal= {arXiv preprint arXiv:2209.11760},
year = {2023}
}