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Tailoring of electromagnetic field localizations by two-dimensional graphene nanostructures
Graphene has great potential for enhancing light−matter interactions in a two-dimensional regime due to surface plasmons with low loss and strong light confinement. Further utilization of graphene in nanophotonics relies on the precise control of light localization properties. Here, we demonstrate t...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6061900/ https://www.ncbi.nlm.nih.gov/pubmed/30167201 http://dx.doi.org/10.1038/lsa.2017.57 |
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author | Zheng, Ze-Bo Li, Jun-Tao Ma, Teng Fang, Han-Lin Ren, Wen-Cai Chen, Jun She, Jun-Cong Zhang, Yu Liu, Fei Chen, Huan-Jun Deng, Shao-Zhi Xu, Ning-Sheng |
author_facet | Zheng, Ze-Bo Li, Jun-Tao Ma, Teng Fang, Han-Lin Ren, Wen-Cai Chen, Jun She, Jun-Cong Zhang, Yu Liu, Fei Chen, Huan-Jun Deng, Shao-Zhi Xu, Ning-Sheng |
author_sort | Zheng, Ze-Bo |
collection | PubMed |
description | Graphene has great potential for enhancing light−matter interactions in a two-dimensional regime due to surface plasmons with low loss and strong light confinement. Further utilization of graphene in nanophotonics relies on the precise control of light localization properties. Here, we demonstrate the tailoring of electromagnetic field localizations in the mid-infrared region by precisely shaping the graphene into nanostructures with different geometries. We generalize the phenomenological cavity model and employ nanoimaging techniques to quantitatively calculate and experimentally visualize the two-dimensional electromagnetic field distributions within the nanostructures, which indicate that the electromagnetic field can be shaped into specific patterns depending on the shapes and sizes of the nanostructures. Furthermore, we show that the light localization performance can be further improved by reducing the sizes of the nanostructures, where a lateral confinement of λ(0)/180 of the incidence light can be achieved. The electromagnetic field localizations within a nanostructure with a specific geometry can also be modulated by chemical doping. Our strategies can, in principle, be generalized to other two-dimensional materials, therefore providing new degrees of freedom for designing nanophotonic components capable of tailoring two-dimensional light confinement over a broad wavelength range. |
format | Online Article Text |
id | pubmed-6061900 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-60619002018-08-30 Tailoring of electromagnetic field localizations by two-dimensional graphene nanostructures Zheng, Ze-Bo Li, Jun-Tao Ma, Teng Fang, Han-Lin Ren, Wen-Cai Chen, Jun She, Jun-Cong Zhang, Yu Liu, Fei Chen, Huan-Jun Deng, Shao-Zhi Xu, Ning-Sheng Light Sci Appl Original Article Graphene has great potential for enhancing light−matter interactions in a two-dimensional regime due to surface plasmons with low loss and strong light confinement. Further utilization of graphene in nanophotonics relies on the precise control of light localization properties. Here, we demonstrate the tailoring of electromagnetic field localizations in the mid-infrared region by precisely shaping the graphene into nanostructures with different geometries. We generalize the phenomenological cavity model and employ nanoimaging techniques to quantitatively calculate and experimentally visualize the two-dimensional electromagnetic field distributions within the nanostructures, which indicate that the electromagnetic field can be shaped into specific patterns depending on the shapes and sizes of the nanostructures. Furthermore, we show that the light localization performance can be further improved by reducing the sizes of the nanostructures, where a lateral confinement of λ(0)/180 of the incidence light can be achieved. The electromagnetic field localizations within a nanostructure with a specific geometry can also be modulated by chemical doping. Our strategies can, in principle, be generalized to other two-dimensional materials, therefore providing new degrees of freedom for designing nanophotonic components capable of tailoring two-dimensional light confinement over a broad wavelength range. Nature Publishing Group 2017-10-06 /pmc/articles/PMC6061900/ /pubmed/30167201 http://dx.doi.org/10.1038/lsa.2017.57 Text en Copyright © 2017 The Author(s) http://creativecommons.org/licenses/by-nc-sa/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 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-nc-sa/4.0/ |
spellingShingle | Original Article Zheng, Ze-Bo Li, Jun-Tao Ma, Teng Fang, Han-Lin Ren, Wen-Cai Chen, Jun She, Jun-Cong Zhang, Yu Liu, Fei Chen, Huan-Jun Deng, Shao-Zhi Xu, Ning-Sheng Tailoring of electromagnetic field localizations by two-dimensional graphene nanostructures |
title | Tailoring of electromagnetic field localizations by two-dimensional graphene nanostructures |
title_full | Tailoring of electromagnetic field localizations by two-dimensional graphene nanostructures |
title_fullStr | Tailoring of electromagnetic field localizations by two-dimensional graphene nanostructures |
title_full_unstemmed | Tailoring of electromagnetic field localizations by two-dimensional graphene nanostructures |
title_short | Tailoring of electromagnetic field localizations by two-dimensional graphene nanostructures |
title_sort | tailoring of electromagnetic field localizations by two-dimensional graphene nanostructures |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6061900/ https://www.ncbi.nlm.nih.gov/pubmed/30167201 http://dx.doi.org/10.1038/lsa.2017.57 |
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