Eutectic epsilon-near-zero metamaterial terahertz waveguides.
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We present and analyze the unique phenomena of enhanced THz transmission through a subwavelength LiF dielectric rod lattice embedded in an epsilon-near-zero KCl host. Our experimental results in combination with theoretical calculations show that subwavelength waveguiding of terahertz radiation is achieved within an alkali-halide eutectic metamaterial as result of the coupling of Mie-resonance modes arising in the dielectric lattice.
author list (cited authors)
Massaouti, M., Basharin, A. A., Kafesaki, M., Acosta, M. F., Merino, R. I., Orera, V. M., ... Tzortzakis, S.