Rainbow trapping in a chirped three-dimensional photonic crystal

Abstract Light localization and intensity enhancement in a woodpile layer-by-layer photonic crystal, whose interlayer distance along the light propagation direction is gradually varied, has been theoretically predicted and experimentally demonstrated. The phenomenon is shown to be related to the pro...

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Autores principales:	Zeki Hayran, Hamza Kurt, Kestutis Staliunas
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f1808e4ad3cb40738a0c85ce8c092c49
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spelling	oai:doaj.org-article:f1808e4ad3cb40738a0c85ce8c092c492021-12-02T16:07:49ZRainbow trapping in a chirped three-dimensional photonic crystal10.1038/s41598-017-03454-w2045-2322https://doaj.org/article/f1808e4ad3cb40738a0c85ce8c092c492017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03454-whttps://doaj.org/toc/2045-2322Abstract Light localization and intensity enhancement in a woodpile layer-by-layer photonic crystal, whose interlayer distance along the light propagation direction is gradually varied, has been theoretically predicted and experimentally demonstrated. The phenomenon is shown to be related to the progressive slowing down and stopping of the incident wave, as a result of the gradual variation of the local dispersion. The light localization is chromatically resolved, since every frequency component is stopped and reflected back at different positions along the crystal. It has been further discussed that the peculiar relation between the stopping position and the wave vector distribution can substantially increase the enhancement factor to more than two orders of magnitude. Compared to previously reported one- and two-dimensional photonic crystal configurations, the proposed scheme has the advantage of reducing the propagation losses by providing a three-dimensional photonic bandgap confinement in all directions. The slowing down and localization of waves inside photonic media can be exploited in optics and generally in wave dynamics, in many applications that require enhanced interaction of light and matter.Zeki HayranHamza KurtKestutis StaliunasNature 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 Zeki Hayran Hamza Kurt Kestutis Staliunas Rainbow trapping in a chirped three-dimensional photonic crystal
description	Abstract Light localization and intensity enhancement in a woodpile layer-by-layer photonic crystal, whose interlayer distance along the light propagation direction is gradually varied, has been theoretically predicted and experimentally demonstrated. The phenomenon is shown to be related to the progressive slowing down and stopping of the incident wave, as a result of the gradual variation of the local dispersion. The light localization is chromatically resolved, since every frequency component is stopped and reflected back at different positions along the crystal. It has been further discussed that the peculiar relation between the stopping position and the wave vector distribution can substantially increase the enhancement factor to more than two orders of magnitude. Compared to previously reported one- and two-dimensional photonic crystal configurations, the proposed scheme has the advantage of reducing the propagation losses by providing a three-dimensional photonic bandgap confinement in all directions. The slowing down and localization of waves inside photonic media can be exploited in optics and generally in wave dynamics, in many applications that require enhanced interaction of light and matter.
format	article
author	Zeki Hayran Hamza Kurt Kestutis Staliunas
author_facet	Zeki Hayran Hamza Kurt Kestutis Staliunas
author_sort	Zeki Hayran
title	Rainbow trapping in a chirped three-dimensional photonic crystal
title_short	Rainbow trapping in a chirped three-dimensional photonic crystal
title_full	Rainbow trapping in a chirped three-dimensional photonic crystal
title_fullStr	Rainbow trapping in a chirped three-dimensional photonic crystal
title_full_unstemmed	Rainbow trapping in a chirped three-dimensional photonic crystal
title_sort	rainbow trapping in a chirped three-dimensional photonic crystal
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/f1808e4ad3cb40738a0c85ce8c092c49
work_keys_str_mv	AT zekihayran rainbowtrappinginachirpedthreedimensionalphotoniccrystal AT hamzakurt rainbowtrappinginachirpedthreedimensionalphotoniccrystal AT kestutisstaliunas rainbowtrappinginachirpedthreedimensionalphotoniccrystal
_version_	1718384754634522624

Rainbow trapping in a chirped three-dimensional photonic crystal

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