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Article Dans Une Revue Proceedings of the National Academy of Sciences of the United States of America Année : 2019

Fresnel drag in space–time-modulated metamaterials

Traînée de Fresnel dans les métamatériaux modulés en espace et en temps

Résumé

A moving medium drags light along with it as measured by Fizeau and explained by Einstein’s theory of special relativity. Here we show that the same effect can be obtained in a situation where there is no physical motion of the medium. Modulations of both the permittivity and permeability, phased in space and time in the form of traveling waves, are the basis of our model. Space–time metamaterials are represented by effective bianisotropic parameters, which can in turn be mapped to a moving homogeneous medium. Hence these metamaterials mimic a relativistic effect without the need for any actual material motion. We discuss how both the permittivity and permeability need to be modulated to achieve these effects, and we present an equivalent transmission line model.
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Dates et versions

hal-02398968 , version 1 (19-12-2019)

Identifiants

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Paloma Huidobro, Emanuele Galiffi, Sebastien Guenneau, Richard V. Craster, J. Pendry. Fresnel drag in space–time-modulated metamaterials. Proceedings of the National Academy of Sciences of the United States of America, 2019, pp.201915027. ⟨10.1073/pnas.1915027116⟩. ⟨hal-02398968⟩
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