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Control of light absorbance using plasmonic grating based perfect absorber at visible and near-infrared wavelengths
Conventional metamaterial absorbers have multilayer designs, where the dielectric interlayer is sandwiched between a top patterned metallic structure and bottom metallic film. Here, we demonstrate that a highly polarization-sensitive perfect absorber canbe realized by replacing the bottom metallic f...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5454054/ https://www.ncbi.nlm.nih.gov/pubmed/28572672 http://dx.doi.org/10.1038/s41598-017-02847-1 |
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author | Nguyen, Duc Minh Lee, Dasol Rho, Junsuk |
author_facet | Nguyen, Duc Minh Lee, Dasol Rho, Junsuk |
author_sort | Nguyen, Duc Minh |
collection | PubMed |
description | Conventional metamaterial absorbers have multilayer designs, where the dielectric interlayer is sandwiched between a top patterned metallic structure and bottom metallic film. Here, we demonstrate that a highly polarization-sensitive perfect absorber canbe realized by replacing the bottom metallic film with a plasmonic grating. Designs for broadband and narrowband of wavelength are proposed and numerically investigated. The designed absorbers perform high light absorption, which is above 90% over the wavelength range of 0.4–1.4 µm for the broadband absorber and 98% for the absorption peak in case of the narrowband design, with a specific polarization of incident light. We find that the absorption is tunable by changing the polarization. Such absorbers offer new approach for active control of light absorbance with strong impacts for solar energy harvesting, light emitting and sensing. |
format | Online Article Text |
id | pubmed-5454054 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-54540542017-06-06 Control of light absorbance using plasmonic grating based perfect absorber at visible and near-infrared wavelengths Nguyen, Duc Minh Lee, Dasol Rho, Junsuk Sci Rep Article Conventional metamaterial absorbers have multilayer designs, where the dielectric interlayer is sandwiched between a top patterned metallic structure and bottom metallic film. Here, we demonstrate that a highly polarization-sensitive perfect absorber canbe realized by replacing the bottom metallic film with a plasmonic grating. Designs for broadband and narrowband of wavelength are proposed and numerically investigated. The designed absorbers perform high light absorption, which is above 90% over the wavelength range of 0.4–1.4 µm for the broadband absorber and 98% for the absorption peak in case of the narrowband design, with a specific polarization of incident light. We find that the absorption is tunable by changing the polarization. Such absorbers offer new approach for active control of light absorbance with strong impacts for solar energy harvesting, light emitting and sensing. Nature Publishing Group UK 2017-06-01 /pmc/articles/PMC5454054/ /pubmed/28572672 http://dx.doi.org/10.1038/s41598-017-02847-1 Text en © 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/. |
spellingShingle | Article Nguyen, Duc Minh Lee, Dasol Rho, Junsuk Control of light absorbance using plasmonic grating based perfect absorber at visible and near-infrared wavelengths |
title | Control of light absorbance using plasmonic grating based perfect absorber at visible and near-infrared wavelengths |
title_full | Control of light absorbance using plasmonic grating based perfect absorber at visible and near-infrared wavelengths |
title_fullStr | Control of light absorbance using plasmonic grating based perfect absorber at visible and near-infrared wavelengths |
title_full_unstemmed | Control of light absorbance using plasmonic grating based perfect absorber at visible and near-infrared wavelengths |
title_short | Control of light absorbance using plasmonic grating based perfect absorber at visible and near-infrared wavelengths |
title_sort | control of light absorbance using plasmonic grating based perfect absorber at visible and near-infrared wavelengths |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5454054/ https://www.ncbi.nlm.nih.gov/pubmed/28572672 http://dx.doi.org/10.1038/s41598-017-02847-1 |
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