All-Dielectric Phase-Gradient Metasurface Performing High-Efficiency Anomalous Transmission in the Near-Infrared Region

We propose and numerically demonstrate a phase-gradient metasurface with high anomalous transmission efficiency and a large anomalous refraction angle that consists of discontinuous regular hexagonal nanorods supported by a silica substrate. The metasurface achieves high anomalous transmission effic...

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Detalles Bibliográficos
Autores principales: Wu, Tiesheng, Liu, Zhihui, Wang, Yiping, Zhang, Huixian, Yang, Zuning, Cao, Weiping, Yang, Dan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2021
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8528930/
https://www.ncbi.nlm.nih.gov/pubmed/34669055
http://dx.doi.org/10.1186/s11671-021-03616-w
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author Wu, Tiesheng
Liu, Zhihui
Wang, Yiping
Zhang, Huixian
Yang, Zuning
Cao, Weiping
Yang, Dan
author_facet Wu, Tiesheng
Liu, Zhihui
Wang, Yiping
Zhang, Huixian
Yang, Zuning
Cao, Weiping
Yang, Dan
author_sort Wu, Tiesheng
collection PubMed
description We propose and numerically demonstrate a phase-gradient metasurface with high anomalous transmission efficiency and a large anomalous refraction angle that consists of discontinuous regular hexagonal nanorods supported by a silica substrate. The metasurface achieves high anomalous transmission efficiency and a full 2[Formula: see text] phase shift for the wavelength range of 1400–1600 nm. At a central wavelength of approximately 1529 nm, the total transmission efficiency reaches 96.5%, and the desired anomalous transmission efficiency reaches 96.2%, with an anomalous refraction angle as large as 30.64. With the adjustment of the period and the number of nanorods per periodic interval, the anomalous transmission efficiency exceeds 69.6% for a large anomalous refraction angle of 68.58. The superior performance of the proposed design may pave the way for its application in optical wavefront control devices.
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spelling pubmed-85289302021-11-04 All-Dielectric Phase-Gradient Metasurface Performing High-Efficiency Anomalous Transmission in the Near-Infrared Region Wu, Tiesheng Liu, Zhihui Wang, Yiping Zhang, Huixian Yang, Zuning Cao, Weiping Yang, Dan Nanoscale Res Lett Nano Express We propose and numerically demonstrate a phase-gradient metasurface with high anomalous transmission efficiency and a large anomalous refraction angle that consists of discontinuous regular hexagonal nanorods supported by a silica substrate. The metasurface achieves high anomalous transmission efficiency and a full 2[Formula: see text] phase shift for the wavelength range of 1400–1600 nm. At a central wavelength of approximately 1529 nm, the total transmission efficiency reaches 96.5%, and the desired anomalous transmission efficiency reaches 96.2%, with an anomalous refraction angle as large as 30.64. With the adjustment of the period and the number of nanorods per periodic interval, the anomalous transmission efficiency exceeds 69.6% for a large anomalous refraction angle of 68.58. The superior performance of the proposed design may pave the way for its application in optical wavefront control devices. Springer US 2021-10-20 /pmc/articles/PMC8528930/ /pubmed/34669055 http://dx.doi.org/10.1186/s11671-021-03616-w Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Nano Express
Wu, Tiesheng
Liu, Zhihui
Wang, Yiping
Zhang, Huixian
Yang, Zuning
Cao, Weiping
Yang, Dan
All-Dielectric Phase-Gradient Metasurface Performing High-Efficiency Anomalous Transmission in the Near-Infrared Region
title All-Dielectric Phase-Gradient Metasurface Performing High-Efficiency Anomalous Transmission in the Near-Infrared Region
title_full All-Dielectric Phase-Gradient Metasurface Performing High-Efficiency Anomalous Transmission in the Near-Infrared Region
title_fullStr All-Dielectric Phase-Gradient Metasurface Performing High-Efficiency Anomalous Transmission in the Near-Infrared Region
title_full_unstemmed All-Dielectric Phase-Gradient Metasurface Performing High-Efficiency Anomalous Transmission in the Near-Infrared Region
title_short All-Dielectric Phase-Gradient Metasurface Performing High-Efficiency Anomalous Transmission in the Near-Infrared Region
title_sort all-dielectric phase-gradient metasurface performing high-efficiency anomalous transmission in the near-infrared region
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8528930/
https://www.ncbi.nlm.nih.gov/pubmed/34669055
http://dx.doi.org/10.1186/s11671-021-03616-w
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