Narrowband and ultra-wideband modulation instability in nonlinear metamaterial waveguides

Linale, N.; Fierens, Pablo Ignacio; Hernández, Santiago M.; Bonetti, Juan I.; Grosz, Diego

Artículo de Publicación Periódica:
Narrowband and ultra-wideband modulation instability in nonlinear metamaterial waveguides

dc.contributor.author	Linale, N.
dc.contributor.author	Fierens, Pablo Ignacio
dc.contributor.author	Hernández, Santiago M.
dc.contributor.author	Bonetti, Juan I.
dc.contributor.author	Grosz, Diego
dc.date	info:eu-repo/date/embargoEnd/2021-11-02
dc.date.accessioned	2021-01-22T01:49:21Z
dc.date.available	2021-01-22T01:49:21Z
dc.date.issued	2020-11-01
dc.description.abstract	"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."	en
dc.identifier.issn	0740-3224
dc.identifier.uri	http://ri.itba.edu.ar/handle/123456789/3310
dc.language.iso	en	en
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	METAMATERIALES	es
dc.subject	MODULACION	es
dc.subject	GUIAS DE ONDAS	es
dc.subject	BANDA ULTRAANCHA	es
dc.title	Narrowband and ultra-wideband modulation instability in nonlinear metamaterial waveguides	en
dc.type	Artículos de Publicaciones Periódicas	es
dc.type	info:eu-repo/semantics/acceptedVersion
dspace.entity.type	Artículo de Publicación Periódica
itba.description.filiation	Fil: Linale, L. Comisión Nacional de Energía Atómica; Argentina.
itba.description.filiation	Fil: Linale, L. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
itba.description.filiation	Fil: Fierens, Pablo Ignacio. Instituto Tecnológico de Buenos Aires; Argentina.
itba.description.filiation	Fil: Fierens, Pablo Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
itba.description.filiation	Fil: Bonetti, Juan I. Comisión Nacional de Energía Atómica; Argentina.
itba.description.filiation	Fil: Bonetti, Juan I. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
itba.description.filiation	Fil: Grosz, Diego. Comisión Nacional de Energía Atómica; Argentina.
itba.description.filiation	Fil: Grosz, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.