Near-zero-index wires

Luigi La Spada, Lucio Vegni

Research output: Contribution to journalArticlepeer-review

67 Citations (Scopus)
71 Downloads (Pure)


In this work, near-zero-index material boundary properties have been exploited to achieve new electromagnetic functionalities. The extraordinary guiding properties of a cylindrical dielectric rod waveguide surrounded by a thin epsilon-mu-near-zero shell is analyzed and discussed. A closed-form solution for the dispersion equation has been developed, able to model and design such properties at will. Analytical and numerical results will confirm that the use of near-zero cover materials leads to extraordinary properties in terms of field configurations, low attenuation, and bandwidth. The dielectric wire acts as an efficient “waveguide” with great potentials for advance nanocircuit and electronics.

Original languageEnglish
Pages (from-to)23699-23708
Number of pages10
JournalOptics Express
Issue number20
Early online date18 Sep 2017
Publication statusPublished - 2 Oct 2017
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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