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Article Dans Une Revue Proceedings of the Royal Society of London Année : 2016

Cloaking through cancellation of diffusive wave scattering

Résumé

A new cloaking mechanism, which makes enclosed objects invisible to diffusive photon density waves, is proposed. First, diffusive scattering from a basic core–shell geometry, which represents the cloaked structure, is studied. The conditions of scattering cancellation in a quasi-static scattering regime are derived. These allow for tailoring the diffusivity constant of the shell enclosing the object so that the fields scattered from the shell and the object cancel each other. This means that the photon flow outside the cloak behaves as if the cloaked object were not present. Diffusive light invisibility may have potential applications in hiding hot spots in infrared thermography or tissue imaging.
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hal-01395830 , version 1 (23-11-2018)

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Mohamed Farhat, Pai-Yen Chen, Sébastien Guenneau, Hakan Bagci, Khaled Nabil Salama, et al.. Cloaking through cancellation of diffusive wave scattering. Proceedings of the Royal Society of London, 2016, 472 (2192), pp.20160276. ⟨10.1098/rspa.2016.0276⟩. ⟨hal-01395830⟩
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