Experimental observation of asymmetrical microwave jets and far-field distribution generated by a dual-material system

Abstract In this paper, we report the experimental and numerical investigation of plane wave diffraction by an all-dielectric dual-material cuboid. Edge diffraction by a cuboid leads to the generation of a narrow, high intensity beam in the near-field region called a photonic jet. We examine the dep...

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Autores principales:	B. Varghese, O. Shramkova, P. Minard, L. Blondé, V. Drazic, V. Allié
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3386e641f55a44e1ad607cf018a7b7a7
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spelling	oai:doaj.org-article:3386e641f55a44e1ad607cf018a7b7a72021-12-02T18:25:03ZExperimental observation of asymmetrical microwave jets and far-field distribution generated by a dual-material system10.1038/s41598-021-91400-22045-2322https://doaj.org/article/3386e641f55a44e1ad607cf018a7b7a72021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91400-2https://doaj.org/toc/2045-2322Abstract In this paper, we report the experimental and numerical investigation of plane wave diffraction by an all-dielectric dual-material cuboid. Edge diffraction by a cuboid leads to the generation of a narrow, high intensity beam in the near-field region called a photonic jet. We examine the dependence of the jet behavior and orientation on the materials and dimensions of constitutive parts in the microwave frequency domain. The possibility to shift and deviate the resultant microwave jet in the near-field region of such a structure depending on the size of constitutive parts is demonstrated numerically. Experimentally, we observe a shift in the spatial position of the jet. The experimental asymmetric electric field profile observed in the far-field region is attributed to the input of multiple edge waves generated by the dual-material cuboid. The presented results may be scaled at different frequency bands such as optical frequencies for designing nanostructures enabling the focusing and deviation functionality and creation of new optical devices which would satisfy the needs of emerging nanophotonic applications.B. VargheseO. ShramkovaP. MinardL. BlondéV. DrazicV. AlliéNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q B. Varghese O. Shramkova P. Minard L. Blondé V. Drazic V. Allié Experimental observation of asymmetrical microwave jets and far-field distribution generated by a dual-material system
description	Abstract In this paper, we report the experimental and numerical investigation of plane wave diffraction by an all-dielectric dual-material cuboid. Edge diffraction by a cuboid leads to the generation of a narrow, high intensity beam in the near-field region called a photonic jet. We examine the dependence of the jet behavior and orientation on the materials and dimensions of constitutive parts in the microwave frequency domain. The possibility to shift and deviate the resultant microwave jet in the near-field region of such a structure depending on the size of constitutive parts is demonstrated numerically. Experimentally, we observe a shift in the spatial position of the jet. The experimental asymmetric electric field profile observed in the far-field region is attributed to the input of multiple edge waves generated by the dual-material cuboid. The presented results may be scaled at different frequency bands such as optical frequencies for designing nanostructures enabling the focusing and deviation functionality and creation of new optical devices which would satisfy the needs of emerging nanophotonic applications.
format	article
author	B. Varghese O. Shramkova P. Minard L. Blondé V. Drazic V. Allié
author_facet	B. Varghese O. Shramkova P. Minard L. Blondé V. Drazic V. Allié
author_sort	B. Varghese
title	Experimental observation of asymmetrical microwave jets and far-field distribution generated by a dual-material system
title_short	Experimental observation of asymmetrical microwave jets and far-field distribution generated by a dual-material system
title_full	Experimental observation of asymmetrical microwave jets and far-field distribution generated by a dual-material system
title_fullStr	Experimental observation of asymmetrical microwave jets and far-field distribution generated by a dual-material system
title_full_unstemmed	Experimental observation of asymmetrical microwave jets and far-field distribution generated by a dual-material system
title_sort	experimental observation of asymmetrical microwave jets and far-field distribution generated by a dual-material system
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/3386e641f55a44e1ad607cf018a7b7a7
work_keys_str_mv	AT bvarghese experimentalobservationofasymmetricalmicrowavejetsandfarfielddistributiongeneratedbyadualmaterialsystem AT oshramkova experimentalobservationofasymmetricalmicrowavejetsandfarfielddistributiongeneratedbyadualmaterialsystem AT pminard experimentalobservationofasymmetricalmicrowavejetsandfarfielddistributiongeneratedbyadualmaterialsystem AT lblonde experimentalobservationofasymmetricalmicrowavejetsandfarfielddistributiongeneratedbyadualmaterialsystem AT vdrazic experimentalobservationofasymmetricalmicrowavejetsandfarfielddistributiongeneratedbyadualmaterialsystem AT vallie experimentalobservationofasymmetricalmicrowavejetsandfarfielddistributiongeneratedbyadualmaterialsystem
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Experimental observation of asymmetrical microwave jets and far-field distribution generated by a dual-material system

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