Experimental study of water wave carpet cloak

Agnes Maurel , Carmen Palacios , Vincent Pagneux (1) , Philippe Petitjeans (2)

1 LAUM - Laboratoire d'Acoustique de l'Université du Mans
2 PMMH - Physique et mécanique des milieux hétérogenes (UMR 7636)

It has been proposed by Li and Pendry ( Phys. Rev. Lett. 101, 203901 2008) a so-called “carpet cloak” able to conceal an object under a curved reflecting surface, imitating the reflection of the flat surface. Since, such cloaking has been tested experimentally in the context of electromagnetic and acoustic waves. The ability of cloaking floating structures in the context of water waves has many applications, notably for coastline protection. We present an experimental study of carpet cloaking for wave in shallow water. The use of a space time resolved method to characterize the field of surface elevation allows to characterize quantitatively the efficiency of the cloaking.

Mots clés: metamateral; water wave

Domaines: Acoustique [physics.class-ph]

Agnes Maurel, Carmen Palacios, Vincent Pagneux, Philippe Petitjeans. Experimental study of water wave carpet cloak. Acoustics 2012, Apr 2012, Nantes, France. ⟨hal-00810712⟩