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

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dc.contributor.authorFaßbender, Alexandercs
dc.contributor.authorBabocký, Jiřícs
dc.contributor.authorDvořák, Petrcs
dc.contributor.authorKřápek, Vlastimilcs
dc.contributor.authorvan der Linden, Stefancs
dc.coverage.issue11cs
dc.coverage.volume3cs
dc.date.accessioned2020-08-04T11:04:38Z
dc.date.available2020-08-04T11:04:38Z
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.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.other150512cs
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.titleInvited 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.insts2020.08.04 13:04:38en
sync.item.modts2020.08.04 12:34:41en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Příprava a charakterizace nanostrukturcs
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Příprava a charakterizace nanostruktur