Optimized design for illusion device by genetic algorithm

Abstract The illusion device developed from the scattering cancellation employs very simple homogeneous and isotropic materials, but this device is only valid for electrically small objects. In this paper, we prove that the illusion device optimized by genetic algorithm can be applied to large-scale...

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Autores principales:	Zhenzhong Yu, Zhong Yang, Yan Zhang, Yizhi Wang, Xingliu Hu, Xiaomin Tian
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6936f529a14d479988f7f2db9ebafce7
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spelling	oai:doaj.org-article:6936f529a14d479988f7f2db9ebafce72021-12-02T17:37:24ZOptimized design for illusion device by genetic algorithm10.1038/s41598-021-99055-92045-2322https://doaj.org/article/6936f529a14d479988f7f2db9ebafce72021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-99055-9https://doaj.org/toc/2045-2322Abstract The illusion device developed from the scattering cancellation employs very simple homogeneous and isotropic materials, but this device is only valid for electrically small objects. In this paper, we prove that the illusion device optimized by genetic algorithm can be applied to large-scale occasions. For an electrically small target, an optimized core–shell illusion device can achieve better illusion effect than the analytical design based on the scattering cancellation. With the increase of the device size, the ability of the single-layered shell to manipulate the scattering is very limited. For a moderate-size target, two optimized multi-layered examples are presented: one is to make a dielectric cylinder appear as another dielectric target, and the other is to make a conducting cylinder behave like a double-negative-material target. The full-wave simulations are carried out to visualize the similar field distributions of the target and the optimized multi-layered design. This optimized design greatly widens the size application range of the illusion device and can also improve the illusion performance with simple material parameters.Zhenzhong YuZhong YangYan ZhangYizhi WangXingliu HuXiaomin TianNature 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 Zhenzhong Yu Zhong Yang Yan Zhang Yizhi Wang Xingliu Hu Xiaomin Tian Optimized design for illusion device by genetic algorithm
description	Abstract The illusion device developed from the scattering cancellation employs very simple homogeneous and isotropic materials, but this device is only valid for electrically small objects. In this paper, we prove that the illusion device optimized by genetic algorithm can be applied to large-scale occasions. For an electrically small target, an optimized core–shell illusion device can achieve better illusion effect than the analytical design based on the scattering cancellation. With the increase of the device size, the ability of the single-layered shell to manipulate the scattering is very limited. For a moderate-size target, two optimized multi-layered examples are presented: one is to make a dielectric cylinder appear as another dielectric target, and the other is to make a conducting cylinder behave like a double-negative-material target. The full-wave simulations are carried out to visualize the similar field distributions of the target and the optimized multi-layered design. This optimized design greatly widens the size application range of the illusion device and can also improve the illusion performance with simple material parameters.
format	article
author	Zhenzhong Yu Zhong Yang Yan Zhang Yizhi Wang Xingliu Hu Xiaomin Tian
author_facet	Zhenzhong Yu Zhong Yang Yan Zhang Yizhi Wang Xingliu Hu Xiaomin Tian
author_sort	Zhenzhong Yu
title	Optimized design for illusion device by genetic algorithm
title_short	Optimized design for illusion device by genetic algorithm
title_full	Optimized design for illusion device by genetic algorithm
title_fullStr	Optimized design for illusion device by genetic algorithm
title_full_unstemmed	Optimized design for illusion device by genetic algorithm
title_sort	optimized design for illusion device by genetic algorithm
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/6936f529a14d479988f7f2db9ebafce7
work_keys_str_mv	AT zhenzhongyu optimizeddesignforillusiondevicebygeneticalgorithm AT zhongyang optimizeddesignforillusiondevicebygeneticalgorithm AT yanzhang optimizeddesignforillusiondevicebygeneticalgorithm AT yizhiwang optimizeddesignforillusiondevicebygeneticalgorithm AT xingliuhu optimizeddesignforillusiondevicebygeneticalgorithm AT xiaomintian optimizeddesignforillusiondevicebygeneticalgorithm
_version_	1718379887303065600

Optimized design for illusion device by genetic algorithm

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