3D field-shaping lens using all-dielectric gradient refractive index materials

3D field-shaping lens using all-dielectric gradient refractive index materials

Abstract A novel three-dimensional (3D) optical lens structure for electromagnetic field shaping based on spatial light transformation method is proposed at microwave frequencies. The lens is capable of transforming cylindrical wavefronts into planar ones, and generating a directive emission. Such m...

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Autores principales: Tongyu Ding, Jianjia Yi, Haoyu Li, Hailin Zhang, Shah Nawaz Burokur
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2017
Materias:
Medicine
R
Science
Q
Acceso en línea:https://doaj.org/article/89ff45ed910c4c9cb7f74fa995523d60
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spelling oai:doaj.org-article:89ff45ed910c4c9cb7f74fa995523d602021-12-02T15:05:46Z3D field-shaping lens using all-dielectric gradient refractive index materials10.1038/s41598-017-00681-z2045-2322https://doaj.org/article/89ff45ed910c4c9cb7f74fa995523d602017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00681-zhttps://doaj.org/toc/2045-2322Abstract A novel three-dimensional (3D) optical lens structure for electromagnetic field shaping based on spatial light transformation method is proposed at microwave frequencies. The lens is capable of transforming cylindrical wavefronts into planar ones, and generating a directive emission. Such manipulation is simulated and analysed by solving Laplace’s equation, and the deformation of the medium during the transformation is theoretically described in detail. The two-dimensional (2D) design method producing quasi-isotropic parameters is further extended to a potential 3D realization with all-dielectric gradient refractive index metamaterials. Numerical full-wave simulations are performed on both 2D and 3D models to verify the functionality and broadband characteristics of the calculated lens. Far-field radiation patterns and near-field distributions demonstrate a highly radiated directive beam when the lens is applied to a conical horn antenna.Tongyu DingJianjia YiHaoyu LiHailin ZhangShah Nawaz BurokurNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Tongyu Ding
Jianjia Yi
Haoyu Li
Hailin Zhang
Shah Nawaz Burokur
3D field-shaping lens using all-dielectric gradient refractive index materials
description Abstract A novel three-dimensional (3D) optical lens structure for electromagnetic field shaping based on spatial light transformation method is proposed at microwave frequencies. The lens is capable of transforming cylindrical wavefronts into planar ones, and generating a directive emission. Such manipulation is simulated and analysed by solving Laplace’s equation, and the deformation of the medium during the transformation is theoretically described in detail. The two-dimensional (2D) design method producing quasi-isotropic parameters is further extended to a potential 3D realization with all-dielectric gradient refractive index metamaterials. Numerical full-wave simulations are performed on both 2D and 3D models to verify the functionality and broadband characteristics of the calculated lens. Far-field radiation patterns and near-field distributions demonstrate a highly radiated directive beam when the lens is applied to a conical horn antenna.
format article
author Tongyu Ding
Jianjia Yi
Haoyu Li
Hailin Zhang
Shah Nawaz Burokur
author_facet Tongyu Ding
Jianjia Yi
Haoyu Li
Hailin Zhang
Shah Nawaz Burokur
author_sort Tongyu Ding
title 3D field-shaping lens using all-dielectric gradient refractive index materials
title_short 3D field-shaping lens using all-dielectric gradient refractive index materials
title_full 3D field-shaping lens using all-dielectric gradient refractive index materials
title_fullStr 3D field-shaping lens using all-dielectric gradient refractive index materials
title_full_unstemmed 3D field-shaping lens using all-dielectric gradient refractive index materials
title_sort 3d field-shaping lens using all-dielectric gradient refractive index materials
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/89ff45ed910c4c9cb7f74fa995523d60
work_keys_str_mv AT tongyuding 3dfieldshapinglensusingalldielectricgradientrefractiveindexmaterials
AT jianjiayi 3dfieldshapinglensusingalldielectricgradientrefractiveindexmaterials
AT haoyuli 3dfieldshapinglensusingalldielectricgradientrefractiveindexmaterials
AT hailinzhang 3dfieldshapinglensusingalldielectricgradientrefractiveindexmaterials
AT shahnawazburokur 3dfieldshapinglensusingalldielectricgradientrefractiveindexmaterials
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