Dielectric Nanorod Scattering and its Influence on Material Interfaces

Abstract This work elaborates on the high scattering which dielectric nanorods exhibit and how it can be exploited to control light propagation across material interfaces. A detailed overview of how dielectric nanorods interact with light through a combination of dipolar scattering and leaky modes i...

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Autores principales:	Gauri M. Mangalgiri, Phillip Manley, Wiebke Riedel, Martina Schmid
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b209db22eb4945d0b43b65cb8c873e87
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spelling	oai:doaj.org-article:b209db22eb4945d0b43b65cb8c873e872021-12-02T16:06:00ZDielectric Nanorod Scattering and its Influence on Material Interfaces10.1038/s41598-017-03721-w2045-2322https://doaj.org/article/b209db22eb4945d0b43b65cb8c873e872017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03721-whttps://doaj.org/toc/2045-2322Abstract This work elaborates on the high scattering which dielectric nanorods exhibit and how it can be exploited to control light propagation across material interfaces. A detailed overview of how dielectric nanorods interact with light through a combination of dipolar scattering and leaky modes is performed via outward power flux calculations. We establish and account for design parameters that best result in light magnification owing to resonant behavior of nanorods. Impact of material parameters on scattering and their dispersion have been calculated to establish that low loss dielectric oxides like ZnO when nanostructured show excellent antenna like resonances which can be used to control light coupling and propagation. Interfacial scattering calculations demonstrate the high forward directivity of nanorods for various dielectric interfaces. A systematic analysis for different configurations of single and periodic nanorods on air dielectric interface emphasizes the light coupling tendencies exhibited by nanorods to and from a dielectric. Spatial characteristics of the localized field enhancement of the nanorod array on an air dielectric interface show focusing attributes of the nanorod array. We give a detailed account to tailor and selectively increase light propagation across an interface with good spectral and spatial control.Gauri M. MangalgiriPhillip ManleyWiebke RiedelMartina SchmidNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-14 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gauri M. Mangalgiri Phillip Manley Wiebke Riedel Martina Schmid Dielectric Nanorod Scattering and its Influence on Material Interfaces
description	Abstract This work elaborates on the high scattering which dielectric nanorods exhibit and how it can be exploited to control light propagation across material interfaces. A detailed overview of how dielectric nanorods interact with light through a combination of dipolar scattering and leaky modes is performed via outward power flux calculations. We establish and account for design parameters that best result in light magnification owing to resonant behavior of nanorods. Impact of material parameters on scattering and their dispersion have been calculated to establish that low loss dielectric oxides like ZnO when nanostructured show excellent antenna like resonances which can be used to control light coupling and propagation. Interfacial scattering calculations demonstrate the high forward directivity of nanorods for various dielectric interfaces. A systematic analysis for different configurations of single and periodic nanorods on air dielectric interface emphasizes the light coupling tendencies exhibited by nanorods to and from a dielectric. Spatial characteristics of the localized field enhancement of the nanorod array on an air dielectric interface show focusing attributes of the nanorod array. We give a detailed account to tailor and selectively increase light propagation across an interface with good spectral and spatial control.
format	article
author	Gauri M. Mangalgiri Phillip Manley Wiebke Riedel Martina Schmid
author_facet	Gauri M. Mangalgiri Phillip Manley Wiebke Riedel Martina Schmid
author_sort	Gauri M. Mangalgiri
title	Dielectric Nanorod Scattering and its Influence on Material Interfaces
title_short	Dielectric Nanorod Scattering and its Influence on Material Interfaces
title_full	Dielectric Nanorod Scattering and its Influence on Material Interfaces
title_fullStr	Dielectric Nanorod Scattering and its Influence on Material Interfaces
title_full_unstemmed	Dielectric Nanorod Scattering and its Influence on Material Interfaces
title_sort	dielectric nanorod scattering and its influence on material interfaces
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/b209db22eb4945d0b43b65cb8c873e87
work_keys_str_mv	AT gaurimmangalgiri dielectricnanorodscatteringanditsinfluenceonmaterialinterfaces AT phillipmanley dielectricnanorodscatteringanditsinfluenceonmaterialinterfaces AT wiebkeriedel dielectricnanorodscatteringanditsinfluenceonmaterialinterfaces AT martinaschmid dielectricnanorodscatteringanditsinfluenceonmaterialinterfaces
_version_	1718385169742692352

Dielectric Nanorod Scattering and its Influence on Material Interfaces

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