Surface Wave Cloak from Graded Refractive Index Nanocomposites

L La Spada, T M McManus, A Dyke, S Haq, Q Cheng, Y Hao

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Abstract

Recently, a great deal of interest has been re-emerged on the possibility to manipulate surface waves, in particular, towards the THz and optical regime. Both concepts of Transformation Optics (TO) and metamaterials have been regarded as one of key enablers for such applications in applied electromagnetics. In this paper, we experimentally demonstrate for the first time a dielectric surface wave cloak from engineered gradient index materials to illustrate the possibility of using nanocomposites to control surface wave propagation through advanced additive manufacturing. The device is designed analytically and validated through numerical simulations and measurements, showing good agreement and performance as an effective surface wave cloak. The underlying design approach has much wider applications, which span from microwave to optics for the control of surface plasmon polaritons (SPPs) and radiation of nanoantennas.

Original languageEnglish
Article number29363
Number of pages8
JournalScientific Reports
Volume6
DOIs
Publication statusPublished - 15 Jul 2016
Externally publishedYes

Bibliographical note

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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    La Spada, L., McManus, T. M., Dyke, A., Haq, S., Cheng, Q., & Hao, Y. (2016). Surface Wave Cloak from Graded Refractive Index Nanocomposites. Scientific Reports, 6, [29363]. https://doi.org/10.1038/srep29363