Open Access
Issue
EPJ Applied Metamaterials
Volume 4, 2017
Article Number 3
Number of page(s) 13
DOI http://dx.doi.org/10.1051/epjam/2016014
Published online 13 January 2017

© N.L. Tsitsas, Published by EDP Sciences, 2017

Licence Creative Commons
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.