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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/46702
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dc.creatorLarissa Vertchenkopt_BR
dc.creatorEvgeniy Shkondinpt_BR
dc.creatorRadu Malureanupt_BR
dc.creatorCarlos Henrique Monkenpt_BR
dc.date.accessioned2022-10-27T17:38:38Z-
dc.date.available2022-10-27T17:38:38Z-
dc.date.issued2017-03-06-
dc.citation.volume25pt_BR
dc.citation.issue6pt_BR
dc.citation.spage5917pt_BR
dc.citation.epage5926pt_BR
dc.identifier.doihttps://doi.org/10.1364/OE.25.005917pt_BR
dc.identifier.issn10944087pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/46702-
dc.description.resumoThe angular momentum of light can be described by the states of spin angular momentum, associated with polarization, and orbital angular momentum, related to the helical structure of the wave front. Laguerre-Gaussian beams carry orbital angular momentum and their generation can be done by using an optical device known as q-plate. However, due to the usage of liquid crystals, these components may be restricted to operate in specific wavelengths and low power sources. Here we present the fabrication and characterization of q-plates made without liquid crystals, using processes of electron beam lithography, atomic layer deposition and dry etch techniques. We exploit the phenomenon of form birefringence to give rise to the spin-to-orbital angular momentum conversion. We demonstrate that these plates can generate beams with high quality for the UV and IR range, allowing them to interact with high power laser sources or inside laser cavities.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE FÍSICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofOptics Expresspt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectOptical vorticespt_BR
dc.subjectLaser beam shapingpt_BR
dc.subjectSubwavelength structurespt_BR
dc.subjectForm birefringencept_BR
dc.subject.otherBirrefrigênciapt_BR
dc.subject.otherMicrofabricaçãopt_BR
dc.titleLaguerre-Gauss beam generation in IR and UV by subwavelength surface-relief gratingspt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://opg.optica.org/oe/fulltext.cfm?uri=oe-25-6-5917&id=360622pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-8347-1814pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6093-5030pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-0064-1882pt_BR
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