Controlling wave fronts with tunable disordered non-Hermitian multilayers

Abstract Unique and flexible properties of non-Hermitian photonic systems attract ever-increasing attention via delivering a whole bunch of novel optical effects and allowing for efficient tuning light-matter interactions on nano- and microscales. Together with an increasing demand for the fast and...

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Autores principales:	Denis V. Novitsky, Dmitry Lyakhov, Dominik Michels, Dmitrii Redka, Alexander A. Pavlov, Alexander S. Shalin
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/59205286f10641a3bcede694edc32ec5
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spelling	oai:doaj.org-article:59205286f10641a3bcede694edc32ec52021-12-02T15:53:59ZControlling wave fronts with tunable disordered non-Hermitian multilayers10.1038/s41598-021-84271-02045-2322https://doaj.org/article/59205286f10641a3bcede694edc32ec52021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84271-0https://doaj.org/toc/2045-2322Abstract Unique and flexible properties of non-Hermitian photonic systems attract ever-increasing attention via delivering a whole bunch of novel optical effects and allowing for efficient tuning light-matter interactions on nano- and microscales. Together with an increasing demand for the fast and spatially compact methods of light governing, this peculiar approach paves a broad avenue to novel optical applications. Here, unifying the approaches of disordered metamaterials and non-Hermitian photonics, we propose a conceptually new and simple architecture driven by disordered loss-gain multilayers and, therefore, providing a powerful tool to control both the passage time and the wave-front shape of incident light with different switching times. For the first time we show the possibility to switch on and off kink formation by changing the level of disorder in the case of adiabatically raising wave fronts. At the same time, we deliver flexible tuning of the output intensity by using the nonlinear effect of loss and gain saturation. Since the disorder strength in our system can be conveniently controlled with the power of the external pump, our approach can be considered as a basis for different active photonic devices.Denis V. NovitskyDmitry LyakhovDominik MichelsDmitrii RedkaAlexander A. PavlovAlexander S. ShalinNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Denis V. Novitsky Dmitry Lyakhov Dominik Michels Dmitrii Redka Alexander A. Pavlov Alexander S. Shalin Controlling wave fronts with tunable disordered non-Hermitian multilayers
description	Abstract Unique and flexible properties of non-Hermitian photonic systems attract ever-increasing attention via delivering a whole bunch of novel optical effects and allowing for efficient tuning light-matter interactions on nano- and microscales. Together with an increasing demand for the fast and spatially compact methods of light governing, this peculiar approach paves a broad avenue to novel optical applications. Here, unifying the approaches of disordered metamaterials and non-Hermitian photonics, we propose a conceptually new and simple architecture driven by disordered loss-gain multilayers and, therefore, providing a powerful tool to control both the passage time and the wave-front shape of incident light with different switching times. For the first time we show the possibility to switch on and off kink formation by changing the level of disorder in the case of adiabatically raising wave fronts. At the same time, we deliver flexible tuning of the output intensity by using the nonlinear effect of loss and gain saturation. Since the disorder strength in our system can be conveniently controlled with the power of the external pump, our approach can be considered as a basis for different active photonic devices.
format	article
author	Denis V. Novitsky Dmitry Lyakhov Dominik Michels Dmitrii Redka Alexander A. Pavlov Alexander S. Shalin
author_facet	Denis V. Novitsky Dmitry Lyakhov Dominik Michels Dmitrii Redka Alexander A. Pavlov Alexander S. Shalin
author_sort	Denis V. Novitsky
title	Controlling wave fronts with tunable disordered non-Hermitian multilayers
title_short	Controlling wave fronts with tunable disordered non-Hermitian multilayers
title_full	Controlling wave fronts with tunable disordered non-Hermitian multilayers
title_fullStr	Controlling wave fronts with tunable disordered non-Hermitian multilayers
title_full_unstemmed	Controlling wave fronts with tunable disordered non-Hermitian multilayers
title_sort	controlling wave fronts with tunable disordered non-hermitian multilayers
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/59205286f10641a3bcede694edc32ec5
work_keys_str_mv	AT denisvnovitsky controllingwavefrontswithtunabledisorderednonhermitianmultilayers AT dmitrylyakhov controllingwavefrontswithtunabledisorderednonhermitianmultilayers AT dominikmichels controllingwavefrontswithtunabledisorderednonhermitianmultilayers AT dmitriiredka controllingwavefrontswithtunabledisorderednonhermitianmultilayers AT alexanderapavlov controllingwavefrontswithtunabledisorderednonhermitianmultilayers AT alexandersshalin controllingwavefrontswithtunabledisorderednonhermitianmultilayers
_version_	1718385510713393152

Controlling wave fronts with tunable disordered non-Hermitian multilayers

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