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dc.contributor.authorSilva, Juarez Gomes dapt_BR
dc.contributor.authorJesus-Silva, Alcenísio J.pt_BR
dc.contributor.authorAlencar, Marcio André Rodrigues Cavalcanti dept_BR
dc.contributor.authorHickmann, Jandir Miguelpt_BR
dc.contributor.authorFonseca, Eduardo Jorge da Silvapt_BR
dc.date.accessioned2014-11-20T02:16:11Zpt_BR
dc.date.issued2014pt_BR
dc.identifier.issn0146-9592pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/107202pt_BR
dc.description.abstractWe study square and triangular optical lattice formation using a diffraction technique with light-possessing orbital angular momentum (OAM). We demonstrate that it is possible to use Fraunhofer diffraction of light by a square aperture to unveil OAM about two times bigger than would be possible with a triangular aperture. We notice that the pattern remains truncated until a topological charge (TC) equal to 20 with good precision. Even though a square pattern cannot be used to determine the TC sign, it is possible to measure high order of the modulus and sign of the TC up to 20, combining patterns of the triangular and square apertures.en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofOptics letters. Washington. Vol. 39, no. 4 (Feb. 2014), p. 949-952pt_BR
dc.rightsOpen Accessen
dc.subjectMomento angularpt_BR
dc.subjectDifracao de Fraunhoferpt_BR
dc.titleUnveiling square and triangular optical lattices : a comparative studypt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000945377pt_BR
dc.type.originEstrangeiropt_BR


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