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. 2017 May 31;7:2556. doi: 10.1038/s41598-017-02911-w

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© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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(a) Calculated transmission spectra for the metasurface with P = 380 nm and D = 180 nm, exhibiting a single resonance at λ = 615 nm. (b) Calculated extinction, scattering, and absorption cross-sections for the a-Si:H nanodisk. (c) Resonant field profiles for the unit a-Si:H nanodisk at λ = 615 nm: (i) top view and (ii) cross-sectional view. Both the ED and MD resonances coincide spectrally.