Near-zero-index wires.

La Spada, Luigi; Vegni, Lucio

Abstract

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.

Citation

La Spada, L., & Vegni, L. (2017). Near-zero-index wires. Optics express, 25(20), 23699-23708. https://doi.org/10.1364/oe.25.023699

• Journal Article Type: Article
• Acceptance Date: Aug 5, 2017
• Online Publication Date: Sep 18, 2017
• Publication Date: Oct 2, 2017
• Deposit Date: Nov 21, 2018
• Publicly Available Date: Nov 22, 2018
• Journal: Optics Express
• Print ISSN: 1094-4087
• Publisher: Optical Society of America
• Peer Reviewed: Peer Reviewed
• Volume: 25
• Issue: 20
• Pages: 23699-23708
• DOI: https://doi.org/10.1364/oe.25.023699
• Keywords: Metamaterials, Waveguides, Surface waves, Electromagnetic optics, Optical engineering, Fiber optics and optical communications,
• Public URL: http://researchrepository.napier.ac.uk/Output/1374444
• Related Public URLs: https://pureportal.coventry.ac.uk/en/publications/near-zero-index-wires
• Contract Date: Nov 22, 2018