A universal design to realize a tunable perfect absorber from infrared to microwaves

We propose a design for an universal absorber, characterized by a resonance frequency that can be tuned from visible to microwave frequencies independently of the choice of the metal and the dielectrics involved. An almost perfect absorption up to 99.8% is demonstrated at resonance for all polarizat...

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Autores principales: Smaali, Rafik, Omeis, Fatima, Moreau, Antoine, Taliercio, Thierry, Centeno, Emmanuel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5013470/
https://www.ncbi.nlm.nih.gov/pubmed/27599634
http://dx.doi.org/10.1038/srep32589
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author Smaali, Rafik
Omeis, Fatima
Moreau, Antoine
Taliercio, Thierry
Centeno, Emmanuel
author_facet Smaali, Rafik
Omeis, Fatima
Moreau, Antoine
Taliercio, Thierry
Centeno, Emmanuel
author_sort Smaali, Rafik
collection PubMed
description We propose a design for an universal absorber, characterized by a resonance frequency that can be tuned from visible to microwave frequencies independently of the choice of the metal and the dielectrics involved. An almost perfect absorption up to 99.8% is demonstrated at resonance for all polarization states of light and for a very wide angular aperture. These properties originate from a magnetic Fabry-Perot mode that is confined in a dielectric spacer of λ/100 thickness by a metamaterial layer and a mirror. An extraordinary large funneling through nano-slits explains how light can be trapped in the structure. Simple scaling laws can be used as a recipe to design ultra-thin perfect absorbers whatever the materials and the desired resonance wavelength, making our design truly universal.
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spelling pubmed-50134702016-09-12 A universal design to realize a tunable perfect absorber from infrared to microwaves Smaali, Rafik Omeis, Fatima Moreau, Antoine Taliercio, Thierry Centeno, Emmanuel Sci Rep Article We propose a design for an universal absorber, characterized by a resonance frequency that can be tuned from visible to microwave frequencies independently of the choice of the metal and the dielectrics involved. An almost perfect absorption up to 99.8% is demonstrated at resonance for all polarization states of light and for a very wide angular aperture. These properties originate from a magnetic Fabry-Perot mode that is confined in a dielectric spacer of λ/100 thickness by a metamaterial layer and a mirror. An extraordinary large funneling through nano-slits explains how light can be trapped in the structure. Simple scaling laws can be used as a recipe to design ultra-thin perfect absorbers whatever the materials and the desired resonance wavelength, making our design truly universal. Nature Publishing Group 2016-09-07 /pmc/articles/PMC5013470/ /pubmed/27599634 http://dx.doi.org/10.1038/srep32589 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ 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/
spellingShingle Article
Smaali, Rafik
Omeis, Fatima
Moreau, Antoine
Taliercio, Thierry
Centeno, Emmanuel
A universal design to realize a tunable perfect absorber from infrared to microwaves
title A universal design to realize a tunable perfect absorber from infrared to microwaves
title_full A universal design to realize a tunable perfect absorber from infrared to microwaves
title_fullStr A universal design to realize a tunable perfect absorber from infrared to microwaves
title_full_unstemmed A universal design to realize a tunable perfect absorber from infrared to microwaves
title_short A universal design to realize a tunable perfect absorber from infrared to microwaves
title_sort universal design to realize a tunable perfect absorber from infrared to microwaves
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5013470/
https://www.ncbi.nlm.nih.gov/pubmed/27599634
http://dx.doi.org/10.1038/srep32589
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