Invited Article: Direct phase mapping of broadband Laguerre-Gaussian metasurfaces

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dc.contributor.authorFaßbender, Alexandercs
dc.contributor.authorBabocký, Jiřícs
dc.contributor.authorViewegh, Petrcs
dc.contributor.authorKřápek, Vlastimilcs
dc.contributor.authorvan der Linden, Stefancs
dc.coverage.issue11cs
dc.coverage.volume3cs
dc.date.issued2018-11-01cs
dc.description.abstractWe report on the fabrication of metasurface phase plates consisting of gold nanoantenna arrays that generate Laguerre-Gaussian modes from a circularly polarized Gaussian input beam. The corresponding helical phase profiles with radial discontinuities are encoded in the metasurfaces by the orientation of the nanoantennas. A commonpath interferometer is used to determine the orbital angular momentum of the generated beams. Additionally, we employ digital holography to record the detailed phase profiles of the Laguerre-Gaussian modes. This method allows a simple and direct quantitative comparison of the measured phase profiles of the generated Laguerre-Gaussian beams with the theoretically expected phase profiles. Experiments with different laser sources demonstrate the broadband operation of the metasurfacesen
dc.description.abstractWe report on the fabrication of metasurface phase plates consisting of gold nanoantenna arrays that generate Laguerre-Gaussian modes from a circularly polarized Gaussian input beam. The corresponding helical phase profiles with radial discontinuities are encoded in the metasurfaces by the orientation of the nanoantennas. A commonpath interferometer is used to determine the orbital angular momentum of the generated beams. Additionally, we employ digital holography to record the detailed phase profiles of the Laguerre-Gaussian modes. This method allows a simple and direct quantitative comparison of the measured phase profiles of the generated Laguerre-Gaussian beams with the theoretically expected phase profiles. Experiments with different laser sources demonstrate the broadband operation of the metasurfacesen
dc.formattextcs
dc.format.extent110803-1-110803-7cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationAPL Photonics. 2018, vol. 3, issue 11, p. 110803-1-110803-7.en
dc.identifier.doi10.1063/1.5049368cs
dc.identifier.issn2378-0967cs
dc.identifier.orcid0000-0003-3659-9249cs
dc.identifier.orcid0000-0002-4047-8653cs
dc.identifier.other150512cs
dc.identifier.researcheridA-9810-2014cs
dc.identifier.researcheridA-6917-2013cs
dc.identifier.scopus57218886044cs
dc.identifier.urihttp://hdl.handle.net/11012/85365
dc.language.isoencs
dc.publisherAIP Publishingcs
dc.relation.ispartofAPL Photonicscs
dc.relation.urihttp://dx.doi.org/10.1063/1.5049368cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2378-0967/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectGaussian distributionen
dc.subjectNanoantennasen
dc.subjectGaussian distribution
dc.subjectNanoantennas
dc.titleInvited Article: Direct phase mapping of broadband Laguerre-Gaussian metasurfacesen
dc.title.alternativeInvited Article: Direct phase mapping of broadband Laguerre-Gaussian metasurfacesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-150512en
sync.item.dbtypeVAVen
sync.item.insts2025.10.14 15:19:28en
sync.item.modts2025.10.14 10:33:05en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Příprava a charakterizace nanostrukturcs
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Příprava a charakterizace nanostruktur