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Journal Articles Scientific Reports Year : 2015

Molding acoustic, electromagnetic and water waves with a single cloak

Jun Xu
Elodie Georget
  • Function : Author
  • PersonId : 952323
Redha Abdeddaim
  • Function : Author
  • PersonId : 952324
Jean Michel Jm G Geffrin
Pierre Sabouroux
Stefan Enoch
Sébastien Guenneau


We describe two experiments demonstrating that a cylindrical cloak formerly introduced for linear surface liquid waves works equally well for sound and electromagnetic waves. This structured cloak behaves like an acoustic cloak with an effective anisotropic density and an electromagnetic cloak with an effective anisotropic permittivity, respectively. Measured forward scattering for pressure and magnetic fields are in good agreement and provide first evidence of broadband cloaking. Microwave experiments and 3D electromagnetic wave simulations further confirm reduced forward and backscattering when a rectangular metallic obstacle is surrounded by the structured cloak for cloaking frequencies between 2.6 and 7.0 GHz. This suggests, as supported by 2D finite element simulations, sound waves are cloaked between 3 and 8 KHz and linear surface liquid waves between 5 and 16 Hz. Moreover, microwave experiments show the field is reduced by 10 to 30 dB inside the invisibility region, which suggests the multi-wave cloak could be used as a protection against water, sonic or microwaves.
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Dates and versions

hal-01283608 , version 1 (16-11-2018)





Jun Xu, Xu Jiang, Nicholas Fang, Elodie Georget, Redha Abdeddaim, et al.. Molding acoustic, electromagnetic and water waves with a single cloak. Scientific Reports, 2015, 5, pp.10678. ⟨10.1038/srep10678⟩. ⟨hal-01283608⟩
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