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dc.contributor.authorHalagačka, Lukáš
dc.contributor.authorVanwolleghem, Mathias
dc.contributor.authorVaurette, Francois
dc.contributor.authorBen Youssef, Jamal
dc.contributor.authorPostava, Kamil
dc.contributor.authorPištora, Jaromír
dc.contributor.authorDagens, Beatrice
dc.date.accessioned2019-01-11T07:12:04Z
dc.date.available2019-01-11T07:12:04Z
dc.date.issued2018
dc.identifier.citationOptics Express. 2018, vol. 26, issue 24, p. 31554-31566.cs
dc.identifier.issn1094-4087
dc.identifier.urihttp://hdl.handle.net/10084/133513
dc.description.abstractWe experimentally demonstrate a disruptive approach to control magnetooptical nonreciprocal effects. It has been known that the combination of a magneto-optically (MO) active substrate and extraordinary transmission (EOT) effects through deep-subwavelength nanoslits of a noble metal grating, leads to giant enhancements of the magnitude of the MO effects that would normally be obtained on just the bar substrate. This was demonstrated both in the transmission configuration, where the OET is directly observed, as well as in reflection configuration, where an increase of a transmitted power results in a decrease in reflected power. We show here that even more than just an enhancement, the MO effects can also undergo a sign reversal by achieving a hybridization of the different types of resonances at play in these EOT nanogratings. By tuning the geometrical profile of the grating's slits, one can engineer - for a fixed wavelength and fixed magnetization - the transverse MO Kerr effect (TMOKE) reflectivity of such a magnetoplasmonic system to be enhanced, extinguished or inversely enhanced. We have fabricated gold gratings with varying nanoslit widths on a Bi-substituted gadolinium iron garnet and experimentally confirmed such a behavior using a customized magneto-optic Mueller matrix ellipsometer. This demonstration allows new design paradigms for integrated nonreciprocal circuits and biochemical sensors with increased sensitivity and reduced footprint.cs
dc.format.extent5291292 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoencs
dc.publisherOptical Society of Americacs
dc.relation.ispartofseriesOptics Expresscs
dc.relation.urihttp://doi.org/10.1364/OE.26.031554cs
dc.rights© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreementcs
dc.titleMagnetoplasmonic nanograting geometry enables optical nonreciprocity sign controlcs
dc.typearticlecs
dc.identifier.doi10.1364/OE.26.031554
dc.rights.accessopenAccesscs
dc.type.versionpublishedVersioncs
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume26cs
dc.description.issue24cs
dc.description.lastpage31566cs
dc.description.firstpage31554cs
dc.identifier.wos000451213200043


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