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Terahertz vortex beam generation by infrared vector beam rectification

hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorDHAYBI, Ali
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorDEGERT, Jerome
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorBRASSELET, Etienne
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorABRAHAM, Emmanuel
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorFREYSZ, Eric
dc.date.issued2019-01
dc.identifier.issn0740-3224
dc.description.abstractEnWe report on the conversion of an infrared vector beam into terahertz vortex beams using a 110-cut ZnTe cubic crystal. First, we provide a theoretical analysis demonstrating how an infrared vector beam with the azimuthal order can be transformed into a terahertz beam endowed with an orbital angular moment content that consists of optical vortices with topological charge ±2. Experimentally, quasi-monochromatic terahertz vortex beams with topological charges +2 and −2 are produced and characterized both in amplitude and phase using real-time two-dimensional imaging of the terahertz electric field. These results enrich the terahertz vortex beam toolbox via the transfer of topological information from infrared to tera-hertz domains.
dc.language.isoen
dc.publisherOptical Society of America
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/
dc.title.enTerahertz vortex beam generation by infrared vector beam rectification
dc.typeArticle de revue
dc.identifier.doi10.1364/JOSAB.36.000012
dc.subject.halPhysique [physics]
dc.subject.halPhysique [physics]/Physique [physics]/Optique [physics.optics]
bordeaux.journalJournal of the Optical Society of America B
bordeaux.page12-18
bordeaux.volume36
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-02152636
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02152636v1
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