Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 13, Number 1, 2017
|
|
---|---|---|
Article Number | 9 | |
Number of page(s) | 8 | |
DOI | https://doi.org/10.1186/s41476-017-0037-9 | |
Published online | 17 March 2017 |
Research
Scattering from metamaterial coated nihility sphere
1
Department of Physics, University of Agriculture, Faisalabad, Pakistan
2
Department of Electrical Engineering, King Saud University, Riyadh, Saudi Arabia
Received:
3
December
2016
Accepted:
15
February
2017
Background: To show the Back-Scattering efficiencies of nihility sphere become non-zero, scattering from metamaterial coated nihility sphere has been carried out in the presented work.
Methods: The field phasors are expanded in terms of spherical wave vector function along with assumed scattering coefficients. Boundaries conditions are applied at each interface, i.e., free space- metamaterial coating and metamaterial coating-nihility sphere core.
Results: Scattering coefficients are obtained by using boundary conditions at each interface. The scattering efficiencies are obtained in graphical form by varying both permittivity and permeability of metamaterial using MATHEMATICA software. Under some special conditions obtained results are compared with already published literature to show the correctness of present formulations.
Conclusion: It is observed that Back-Scattering efficiencies of nihility sphere becomes non-zero when we introduce a metamaterial coating layer on it. It is also noticed that the scattering efficiencies are dependent on coating thickness as well as permittivity and permeability of metamaterials.
Key words: Nihility / Sphere / Metamaterial / Scattering / Forward-scattering efficiency / Back-scattering and Extinction efficiency
© The Author(s) 2017
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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