Narrowband and ultra-wideband modulation instability in nonlinear metamaterial waveguides

"Waveguides based on metamaterials may exhibit strongly frequency-dependent nonlinearities. In this work, we focus on the phenomenon of modulation instability in this type of waveguide, departing from a new modeling equation that ensures strict conservation of both the energy and photon number...

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Detalles Bibliográficos
Autores principales: Linale, N., Fierens, Pablo Ignacio, Hernández, Santiago M., Bonetti, Juan I., Grosz, Diego
Formato: Artículos de Publicaciones Periódicas acceptedVersion
Lenguaje:Inglés
Publicado: info
Materias:
METAMATERIALES
MODULACION
GUIAS DE ONDAS
BANDA ULTRAANCHA
Acceso en línea:http://ri.itba.edu.ar/handle/123456789/3310
Aporte de:
Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA) de Instituto Tecnológico de Buenos Aires (ITBA)
id I32-R138-123456789-3310
record_format dspace
spelling I32-R138-123456789-33102022-12-07T13:06:24Z Narrowband and ultra-wideband modulation instability in nonlinear metamaterial waveguides Linale, N. Fierens, Pablo Ignacio Hernández, Santiago M. Bonetti, Juan I. Grosz, Diego METAMATERIALES MODULACION GUIAS DE ONDAS BANDA ULTRAANCHA "Waveguides based on metamaterials may exhibit strongly frequency-dependent nonlinearities. In this work, we focus on the phenomenon of modulation instability in this type of waveguide, departing from a new modeling equation that ensures strict conservation of both the energy and photon number of the parametric process. In particular, we analyse the case of a waveguide with a linearly frequency-dependent nonlinear coefficient, revealing unique features such as narrowband and ultra-wideband gain spectra and the suppression of the power cutoff giving rise to an ever-growing MI gain. These markedly distinct regimes are enabled by self-steepening (SS) and manifest themselves depending upon the magnitude and sign of the SS parameter.We believe these findings to be most relevant in the context of mid-IR supercontinuum sources." info:eu-repo/date/embargoEnd/2021-11-02 2021-01-22T01:49:21Z 2021-01-22T01:49:21Z 2020-11-01 Artículos de Publicaciones Periódicas info:eu-repo/semantics/acceptedVersion 0740-3224 http://ri.itba.edu.ar/handle/123456789/3310 en info:eu-repo/semantics/embargoedAccess application/pdf
institution Instituto Tecnológico de Buenos Aires (ITBA)
institution_str I-32
repository_str R-138
collection Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA)
language Inglés
topic METAMATERIALES
MODULACION
GUIAS DE ONDAS
BANDA ULTRAANCHA
spellingShingle METAMATERIALES
MODULACION
GUIAS DE ONDAS
BANDA ULTRAANCHA
Linale, N.
Fierens, Pablo Ignacio
Hernández, Santiago M.
Bonetti, Juan I.
Grosz, Diego
Narrowband and ultra-wideband modulation instability in nonlinear metamaterial waveguides
topic_facet METAMATERIALES
MODULACION
GUIAS DE ONDAS
BANDA ULTRAANCHA
description "Waveguides based on metamaterials may exhibit strongly frequency-dependent nonlinearities. In this work, we focus on the phenomenon of modulation instability in this type of waveguide, departing from a new modeling equation that ensures strict conservation of both the energy and photon number of the parametric process. In particular, we analyse the case of a waveguide with a linearly frequency-dependent nonlinear coefficient, revealing unique features such as narrowband and ultra-wideband gain spectra and the suppression of the power cutoff giving rise to an ever-growing MI gain. These markedly distinct regimes are enabled by self-steepening (SS) and manifest themselves depending upon the magnitude and sign of the SS parameter.We believe these findings to be most relevant in the context of mid-IR supercontinuum sources."
format Artículos de Publicaciones Periódicas
acceptedVersion
author Linale, N.
Fierens, Pablo Ignacio
Hernández, Santiago M.
Bonetti, Juan I.
Grosz, Diego
author_facet Linale, N.
Fierens, Pablo Ignacio
Hernández, Santiago M.
Bonetti, Juan I.
Grosz, Diego
author_sort Linale, N.
title Narrowband and ultra-wideband modulation instability in nonlinear metamaterial waveguides
title_short Narrowband and ultra-wideband modulation instability in nonlinear metamaterial waveguides
title_full Narrowband and ultra-wideband modulation instability in nonlinear metamaterial waveguides
title_fullStr Narrowband and ultra-wideband modulation instability in nonlinear metamaterial waveguides
title_full_unstemmed Narrowband and ultra-wideband modulation instability in nonlinear metamaterial waveguides
title_sort narrowband and ultra-wideband modulation instability in nonlinear metamaterial waveguides
publishDate info
url http://ri.itba.edu.ar/handle/123456789/3310
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AT hernandezsantiagom narrowbandandultrawidebandmodulationinstabilityinnonlinearmetamaterialwaveguides
AT bonettijuani narrowbandandultrawidebandmodulationinstabilityinnonlinearmetamaterialwaveguides
AT groszdiego narrowbandandultrawidebandmodulationinstabilityinnonlinearmetamaterialwaveguides
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