Unidirectional propagation of the Bloch surface wave excited by the spinning magnetic dipole in two-dimensional photonic crystal slab

Abstract The photonic spin Hall effect (PSHE) can be realized in a photonic crystal (PC) slab, that is, the unidirectional Bloch surface wave can propagate along the surface of the PC slab under the excitation of elliptical polarized magnetic dipole. It is further proved that PSHE is caused by the i...

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Autores principales:	Li-Ming Zhao, Yun-Song Zhou
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/654d96a1a97b4be9b775ac5019d13748
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spelling	oai:doaj.org-article:654d96a1a97b4be9b775ac5019d137482021-12-02T17:23:47ZUnidirectional propagation of the Bloch surface wave excited by the spinning magnetic dipole in two-dimensional photonic crystal slab10.1038/s41598-021-98056-y2045-2322https://doaj.org/article/654d96a1a97b4be9b775ac5019d137482021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98056-yhttps://doaj.org/toc/2045-2322Abstract The photonic spin Hall effect (PSHE) can be realized in a photonic crystal (PC) slab, that is, the unidirectional Bloch surface wave can propagate along the surface of the PC slab under the excitation of elliptical polarized magnetic dipole. It is further proved that PSHE is caused by the interference of the component surface waves excited by the different components of the incident light, which is the so called component wave interference (CWI) theory. In addition, we also find that the spin of the surface wave oscillates periodically in space, and the oscillation period is a unit cell. In a unit cell, the average spin keeps the spin orbit locked. The results show that the spin separation can also be modulated by the position and the polarization state of the magnetic dipole.Li-Ming ZhaoYun-Song ZhouNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Li-Ming Zhao Yun-Song Zhou Unidirectional propagation of the Bloch surface wave excited by the spinning magnetic dipole in two-dimensional photonic crystal slab
description	Abstract The photonic spin Hall effect (PSHE) can be realized in a photonic crystal (PC) slab, that is, the unidirectional Bloch surface wave can propagate along the surface of the PC slab under the excitation of elliptical polarized magnetic dipole. It is further proved that PSHE is caused by the interference of the component surface waves excited by the different components of the incident light, which is the so called component wave interference (CWI) theory. In addition, we also find that the spin of the surface wave oscillates periodically in space, and the oscillation period is a unit cell. In a unit cell, the average spin keeps the spin orbit locked. The results show that the spin separation can also be modulated by the position and the polarization state of the magnetic dipole.
format	article
author	Li-Ming Zhao Yun-Song Zhou
author_facet	Li-Ming Zhao Yun-Song Zhou
author_sort	Li-Ming Zhao
title	Unidirectional propagation of the Bloch surface wave excited by the spinning magnetic dipole in two-dimensional photonic crystal slab
title_short	Unidirectional propagation of the Bloch surface wave excited by the spinning magnetic dipole in two-dimensional photonic crystal slab
title_full	Unidirectional propagation of the Bloch surface wave excited by the spinning magnetic dipole in two-dimensional photonic crystal slab
title_fullStr	Unidirectional propagation of the Bloch surface wave excited by the spinning magnetic dipole in two-dimensional photonic crystal slab
title_full_unstemmed	Unidirectional propagation of the Bloch surface wave excited by the spinning magnetic dipole in two-dimensional photonic crystal slab
title_sort	unidirectional propagation of the bloch surface wave excited by the spinning magnetic dipole in two-dimensional photonic crystal slab
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/654d96a1a97b4be9b775ac5019d13748
work_keys_str_mv	AT limingzhao unidirectionalpropagationoftheblochsurfacewaveexcitedbythespinningmagneticdipoleintwodimensionalphotoniccrystalslab AT yunsongzhou unidirectionalpropagationoftheblochsurfacewaveexcitedbythespinningmagneticdipoleintwodimensionalphotoniccrystalslab
_version_	1718380973636190208

Unidirectional propagation of the Bloch surface wave excited by the spinning magnetic dipole in two-dimensional photonic crystal slab

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