Document Type

Article

Publication Date

10-20-2017

Department

Center for Cyber-Physical Systems, Department of Electrical and Computer Engineering

Abstract

All-dielectric metamaterials comprised of identical resonators draw a lot of attention as low-loss media providing for negative refraction, which is commonly attributed to the double negativity of effective material parameters caused by overlapping of Mie resonances. We study dispersion diagrams of such metamaterials composed of dielectric rod arrays and show that bandwidths of positive and negative refraction and its type are irrelevant to the negativity of effective parameters; instead, they are unambiguously defined by the shape and the location of the second transmission branch in dispersion diagrams and thus can be controlled by the lattice constants.

Publisher's Statement

© 2017 IOP Publishing Ltd. The accepted manuscript is deposited here in compliance with publisher policies. Publisher's version of record: https://doi.org/10.1088/1361-6463/aa89d3

Publication Title

Journal of Physics D: Applied Physics

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

Version

Preprint

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