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Journal articles
Left-handed band in an electromagnetic metamaterial induced by sub-wavelength multiple scattering
Abstract : Due to the deep sub-wavelength unit cell in metamaterials, the quasi-static approximation is usually employed to describe the propagation. By making pairs of resonators, we highlight that multiple scattering also occurs at this scale and results in the existence of a dipolar resonance, which leads to a negative index of refraction when we consider several resonators. We experimentally verify the possibility of obtaining a negative index of refraction in periodic metamaterials in two different ways, and eventually demonstrates a superlensing effect in both cases
https://hal-cea.archives-ouvertes.fr/cea-02107417
Contributor : Serge Palacin Connect in order to contact the contributor
Submitted on : Tuesday, April 23, 2019 - 4:25:57 PM
Last modification on : Wednesday, November 17, 2021 - 12:33:52 PM
Contributor : Serge Palacin Connect in order to contact the contributor
Submitted on : Tuesday, April 23, 2019 - 4:25:57 PM
Last modification on : Wednesday, November 17, 2021 - 12:33:52 PM
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