Low-reflective wire-grid polariser sheet in the visible region fabricated by a nanoprinting process

Abstract For the construction of next-generation optical products and systems, the evolution of polariser sheets is a necessary requirement. To this end, a low-reflective wire-grid polariser (WGP) sheet for the visible light region is demonstrated, the nanowires of which consist of a sintered body o...

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Autores principales:	Ryohei Hokari, Kyohei Takakuwa, Hirohisa Kato, Akitaka Yamamoto, Yusuke Yamaguchi, Kazuma Kurihara
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/df40436834d04960a76cc3fc06765d6a
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spelling	oai:doaj.org-article:df40436834d04960a76cc3fc06765d6a2021-12-02T14:07:48ZLow-reflective wire-grid polariser sheet in the visible region fabricated by a nanoprinting process10.1038/s41598-021-81750-22045-2322https://doaj.org/article/df40436834d04960a76cc3fc06765d6a2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81750-2https://doaj.org/toc/2045-2322Abstract For the construction of next-generation optical products and systems, the evolution of polariser sheets is a necessary requirement. To this end, a low-reflective wire-grid polariser (WGP) sheet for the visible light region is demonstrated, the nanowires of which consist of a sintered body of silver nanoparticle ink. The nanowires are formed by a nanoprinting process using a thermal nanoimprint method and ink filling. This process makes it easier to achieve multiple wafer-scale productions without using sophisticated equipment compared to conventional WGP nanofabrication techniques, which typically employ lithography and elaborate etching processes. The optical characteristics are controlled by the shape of the printed nanowires. A WGP sheet with a luminous degree of polarisation of 99.0%, a total luminous transmittance of 13.6%, and a luminous reflectance of 3.6% is produced. Its low reflectance is achieved through the uneven surface derived from the sintered body of the nanoparticle ink, and the shape of the bottom of the nanowire is derived from the tip shape of the mould structure. Furthermore, the printed WGP sheet has the durability required for the manufacturing of curved products, including sunglasses. The optical structures made of nanoparticle ink using this nanoprinting process have the potential to significantly contribute to the development of fine-structured optical elements with unprecedented functionality.Ryohei HokariKyohei TakakuwaHirohisa KatoAkitaka YamamotoYusuke YamaguchiKazuma KuriharaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ryohei Hokari Kyohei Takakuwa Hirohisa Kato Akitaka Yamamoto Yusuke Yamaguchi Kazuma Kurihara Low-reflective wire-grid polariser sheet in the visible region fabricated by a nanoprinting process
description	Abstract For the construction of next-generation optical products and systems, the evolution of polariser sheets is a necessary requirement. To this end, a low-reflective wire-grid polariser (WGP) sheet for the visible light region is demonstrated, the nanowires of which consist of a sintered body of silver nanoparticle ink. The nanowires are formed by a nanoprinting process using a thermal nanoimprint method and ink filling. This process makes it easier to achieve multiple wafer-scale productions without using sophisticated equipment compared to conventional WGP nanofabrication techniques, which typically employ lithography and elaborate etching processes. The optical characteristics are controlled by the shape of the printed nanowires. A WGP sheet with a luminous degree of polarisation of 99.0%, a total luminous transmittance of 13.6%, and a luminous reflectance of 3.6% is produced. Its low reflectance is achieved through the uneven surface derived from the sintered body of the nanoparticle ink, and the shape of the bottom of the nanowire is derived from the tip shape of the mould structure. Furthermore, the printed WGP sheet has the durability required for the manufacturing of curved products, including sunglasses. The optical structures made of nanoparticle ink using this nanoprinting process have the potential to significantly contribute to the development of fine-structured optical elements with unprecedented functionality.
format	article
author	Ryohei Hokari Kyohei Takakuwa Hirohisa Kato Akitaka Yamamoto Yusuke Yamaguchi Kazuma Kurihara
author_facet	Ryohei Hokari Kyohei Takakuwa Hirohisa Kato Akitaka Yamamoto Yusuke Yamaguchi Kazuma Kurihara
author_sort	Ryohei Hokari
title	Low-reflective wire-grid polariser sheet in the visible region fabricated by a nanoprinting process
title_short	Low-reflective wire-grid polariser sheet in the visible region fabricated by a nanoprinting process
title_full	Low-reflective wire-grid polariser sheet in the visible region fabricated by a nanoprinting process
title_fullStr	Low-reflective wire-grid polariser sheet in the visible region fabricated by a nanoprinting process
title_full_unstemmed	Low-reflective wire-grid polariser sheet in the visible region fabricated by a nanoprinting process
title_sort	low-reflective wire-grid polariser sheet in the visible region fabricated by a nanoprinting process
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/df40436834d04960a76cc3fc06765d6a
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Low-reflective wire-grid polariser sheet in the visible region fabricated by a nanoprinting process

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