Design of Non-Deterministic Quasi-random Nanophotonic Structures Using Fourier Space Representations

Abstract Despite their seemingly random appearances in the real space, quasi-random nanophotonic structures exhibit distinct structural correlations and have been widely utilized for effective photon management. However, current design approaches mainly rely on the deterministic representations cons...

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Autores principales:	Shuangcheng Yu, Chen Wang, Yichi Zhang, Biqin Dong, Zhen Jiang, Xiangfan Chen, Wei Chen, Cheng Sun
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9f1edd6722194a35a4b1707d5485f4b6
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spelling	oai:doaj.org-article:9f1edd6722194a35a4b1707d5485f4b62021-12-02T15:06:15ZDesign of Non-Deterministic Quasi-random Nanophotonic Structures Using Fourier Space Representations10.1038/s41598-017-04013-z2045-2322https://doaj.org/article/9f1edd6722194a35a4b1707d5485f4b62017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04013-zhttps://doaj.org/toc/2045-2322Abstract Despite their seemingly random appearances in the real space, quasi-random nanophotonic structures exhibit distinct structural correlations and have been widely utilized for effective photon management. However, current design approaches mainly rely on the deterministic representations consisting two-dimensional (2D) discretized patterns in the real space. They fail to capture the inherent non-deterministic characteristic of the quasi-random structures and inevitably result in a large design dimensionality. Here, we report a new design approach that employs the one-dimensional (1D) spectral density function (SDF) as the unique representation of non-deterministic quasi-random structures in the Fourier space with greatly reduced design dimensionality. One 1D SDF representation can be used to generate infinite sets of real space structures in 2D with equally optimized performance, which was further validated experimentally using light-trapping structures in a thin film absorber as a model system. The optimized non-deterministic quasi-random nanostructures improve the broadband absorption by 225% over the unpatterned cell.Shuangcheng YuChen WangYichi ZhangBiqin DongZhen JiangXiangfan ChenWei ChenCheng SunNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shuangcheng Yu Chen Wang Yichi Zhang Biqin Dong Zhen Jiang Xiangfan Chen Wei Chen Cheng Sun Design of Non-Deterministic Quasi-random Nanophotonic Structures Using Fourier Space Representations
description	Abstract Despite their seemingly random appearances in the real space, quasi-random nanophotonic structures exhibit distinct structural correlations and have been widely utilized for effective photon management. However, current design approaches mainly rely on the deterministic representations consisting two-dimensional (2D) discretized patterns in the real space. They fail to capture the inherent non-deterministic characteristic of the quasi-random structures and inevitably result in a large design dimensionality. Here, we report a new design approach that employs the one-dimensional (1D) spectral density function (SDF) as the unique representation of non-deterministic quasi-random structures in the Fourier space with greatly reduced design dimensionality. One 1D SDF representation can be used to generate infinite sets of real space structures in 2D with equally optimized performance, which was further validated experimentally using light-trapping structures in a thin film absorber as a model system. The optimized non-deterministic quasi-random nanostructures improve the broadband absorption by 225% over the unpatterned cell.
format	article
author	Shuangcheng Yu Chen Wang Yichi Zhang Biqin Dong Zhen Jiang Xiangfan Chen Wei Chen Cheng Sun
author_facet	Shuangcheng Yu Chen Wang Yichi Zhang Biqin Dong Zhen Jiang Xiangfan Chen Wei Chen Cheng Sun
author_sort	Shuangcheng Yu
title	Design of Non-Deterministic Quasi-random Nanophotonic Structures Using Fourier Space Representations
title_short	Design of Non-Deterministic Quasi-random Nanophotonic Structures Using Fourier Space Representations
title_full	Design of Non-Deterministic Quasi-random Nanophotonic Structures Using Fourier Space Representations
title_fullStr	Design of Non-Deterministic Quasi-random Nanophotonic Structures Using Fourier Space Representations
title_full_unstemmed	Design of Non-Deterministic Quasi-random Nanophotonic Structures Using Fourier Space Representations
title_sort	design of non-deterministic quasi-random nanophotonic structures using fourier space representations
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/9f1edd6722194a35a4b1707d5485f4b6
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Design of Non-Deterministic Quasi-random Nanophotonic Structures Using Fourier Space Representations

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