Strong and robust polarization anisotropy of site- and size-controlled single InGaN/GaN quantum wires

Abstract Optical polarization is an indispensable component in photonic applications, the orthogonality of which extends the degree of freedom of information, and strongly polarized and highly efficient small-size emitters are essential for compact polarization-based devices. We propose a group III-...

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Autores principales:	Hwan-Seop Yeo, Kwanjae Lee, Young Chul Sim, Seoung-Hwan Park, Yong-Hoon Cho
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3191cbf417014a689011c43da35e2687
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spelling	oai:doaj.org-article:3191cbf417014a689011c43da35e26872021-12-02T18:48:01ZStrong and robust polarization anisotropy of site- and size-controlled single InGaN/GaN quantum wires10.1038/s41598-020-71590-x2045-2322https://doaj.org/article/3191cbf417014a689011c43da35e26872020-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-71590-xhttps://doaj.org/toc/2045-2322Abstract Optical polarization is an indispensable component in photonic applications, the orthogonality of which extends the degree of freedom of information, and strongly polarized and highly efficient small-size emitters are essential for compact polarization-based devices. We propose a group III-nitride quantum wire for a highly-efficient, strongly-polarized emitter, the polarization anisotropy of which stems solely from its one-dimensionality. We fabricated a site-selective and size-controlled single quantum wire using the geometrical shape of a three-dimensional structure under a self-limited growth mechanism. We present a strong and robust optical polarization anisotropy at room temperature emerging from a group III-nitride single quantum wire. Based on polarization-resolved spectroscopy and strain-included 6-band k·p calculations, the strong anisotropy is mainly attributed to the anisotropic strain distribution caused by the one-dimensionality, and its robustness to temperature is associated with an asymmetric quantum confinement effect.Hwan-Seop YeoKwanjae LeeYoung Chul SimSeoung-Hwan ParkYong-Hoon ChoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hwan-Seop Yeo Kwanjae Lee Young Chul Sim Seoung-Hwan Park Yong-Hoon Cho Strong and robust polarization anisotropy of site- and size-controlled single InGaN/GaN quantum wires
description	Abstract Optical polarization is an indispensable component in photonic applications, the orthogonality of which extends the degree of freedom of information, and strongly polarized and highly efficient small-size emitters are essential for compact polarization-based devices. We propose a group III-nitride quantum wire for a highly-efficient, strongly-polarized emitter, the polarization anisotropy of which stems solely from its one-dimensionality. We fabricated a site-selective and size-controlled single quantum wire using the geometrical shape of a three-dimensional structure under a self-limited growth mechanism. We present a strong and robust optical polarization anisotropy at room temperature emerging from a group III-nitride single quantum wire. Based on polarization-resolved spectroscopy and strain-included 6-band k·p calculations, the strong anisotropy is mainly attributed to the anisotropic strain distribution caused by the one-dimensionality, and its robustness to temperature is associated with an asymmetric quantum confinement effect.
format	article
author	Hwan-Seop Yeo Kwanjae Lee Young Chul Sim Seoung-Hwan Park Yong-Hoon Cho
author_facet	Hwan-Seop Yeo Kwanjae Lee Young Chul Sim Seoung-Hwan Park Yong-Hoon Cho
author_sort	Hwan-Seop Yeo
title	Strong and robust polarization anisotropy of site- and size-controlled single InGaN/GaN quantum wires
title_short	Strong and robust polarization anisotropy of site- and size-controlled single InGaN/GaN quantum wires
title_full	Strong and robust polarization anisotropy of site- and size-controlled single InGaN/GaN quantum wires
title_fullStr	Strong and robust polarization anisotropy of site- and size-controlled single InGaN/GaN quantum wires
title_full_unstemmed	Strong and robust polarization anisotropy of site- and size-controlled single InGaN/GaN quantum wires
title_sort	strong and robust polarization anisotropy of site- and size-controlled single ingan/gan quantum wires
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/3191cbf417014a689011c43da35e2687
work_keys_str_mv	AT hwanseopyeo strongandrobustpolarizationanisotropyofsiteandsizecontrolledsingleinganganquantumwires AT kwanjaelee strongandrobustpolarizationanisotropyofsiteandsizecontrolledsingleinganganquantumwires AT youngchulsim strongandrobustpolarizationanisotropyofsiteandsizecontrolledsingleinganganquantumwires AT seounghwanpark strongandrobustpolarizationanisotropyofsiteandsizecontrolledsingleinganganquantumwires AT yonghooncho strongandrobustpolarizationanisotropyofsiteandsizecontrolledsingleinganganquantumwires
_version_	1718377614432796672

Strong and robust polarization anisotropy of site- and size-controlled single InGaN/GaN quantum wires

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