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Journal Articles Applied Physics Letters Year : 2019

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

Dates and versions

cea-02107417 , version 1 (23-04-2019)

Identifiers

Cite

Simon Yves, Thomas Berthelot, Mathias Fink, Geoffroy Lerosey, Fabrice Lemoult. Left-handed band in an electromagnetic metamaterial induced by sub-wavelength multiple scattering. Applied Physics Letters, 2019, 114 (11), pp.111101. ⟨10.1063/1.5065556⟩. ⟨cea-02107417⟩
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