Ross McPhedran, ross@physics.usyd.edu.au
Co-authors: J. O’Neill, O. Selsil, A.B. Movchan and N.V. Movchan
A Platonic View of Active Cloaking
We consider active cloaking of flexural waves in a Kirchhoff plate, where the objective is to minimise the
far-field scattering signature of a rigid, clamped inclusion. The method relies on placing control sources at
small distances from the scatterer and choosing their strengths to eliminate propagating orders of the scattered
wave, thus reconstructing the incident wave. We use six control sources to obtain an effective configuration
for cloaking the circular inclusion. Finally, we successfully cloak an arbitrarily shaped scatterer by deriving a
semi-analytical, asymptotic algorithm. For further details, see arXiv:1403.0816