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Article Dans Une Revue Optics Express Année : 2018

Frequency domain transformation optics for diffusive photon density waves’ cloaking

Résumé

We make use of transformation optics technique to realize cloaking operation in the light diffusive regime, for spherical objects. The cloak requires spatially heterogeneous anisotropic diffusivity, as well as spatially varying speed of light and absorption. Analytic calculations of Photon’s fluence confirm minor role of absorption in reduction of far-field scattering, and a monopole fluence field converging to a constant in the static regime in the invisibility region. The latter is in contrast to acoustic and electromagnetic cloaks, for which the field vanishes inside the core. These results are finally discussed in the context of mass diffusion, where cloaking can be achieved with a heterogeneous anisotropic diffusivity.

Dates et versions

hal-01914764 , version 1 (07-11-2018)

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Mohamed Farhat, Sebastien Guenneau, Tania M Puvirajesinghe, Fahhad Alharbi. Frequency domain transformation optics for diffusive photon density waves’ cloaking. Optics Express, 2018, 26 (19), pp.24792-24803. ⟨10.1364/OE.26.024792⟩. ⟨hal-01914764⟩
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