00 CAMPUS ARISTÓTELES CALAZANS SIMÕES (CAMPUS A. C. SIMÕES) IF - INSTITUTO DE FÍSICA Dissertações e Teses defendidas na UFAL - IF
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Campo DCValorIdioma
dc.contributor.advisor1Brandão Filho, Paulo César Aguiar-
dc.contributor.advisor1Latteshttp://lattes.cnpq.br/5646717030559668pt_BR
dc.contributor.referee1Cavalcanti, Solange Bessa-
dc.contributor.referee2Costa, Alex Emanuel Barros-
dc.creatorCirino, Miquéias Jacinto-
dc.creator.Latteshttp://lattes.cnpq.br/4053596408556268pt_BR
dc.date.accessioned2024-09-19T19:08:27Z-
dc.date.available2024-09-19-
dc.date.available2024-09-19T19:08:27Z-
dc.date.issued2024-02-26-
dc.identifier.citationCIRINO, Miquéias Jacinto. On the role of spatial coherence of optical beams in one dimensional photonic lattices. 2024. 94 f. Dissertação (Mestrado em Fisica) – Programa de Pós-Graduação em Física, Instituto de Física, Universidade Federal de Alagoas, Maceió, 2024.pt_BR
dc.identifier.urihttp://www.repositorio.ufal.br/jspui/handle/123456789/14348-
dc.description.abstractnão tempt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.languageporpt_BR
dc.publisherUniversidade Federal de Alagoaspt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.programPrograma de Pós-Graduação em Físicapt_BR
dc.publisher.initialsUFALpt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectClassical Opticspt_BR
dc.subjectInterference and Diffraction of Lightpt_BR
dc.subjectOptical Coherencept_BR
dc.subjectÓpticapt_BR
dc.subjectInterferência (Luz)pt_BR
dc.subjectDifração de luzpt_BR
dc.subjectCoerência Ópticapt_BR
dc.subject.cnpqCNPQ::CIENCIAS EXATAS E DA TERRA::FISICApt_BR
dc.titleOn the role of spatial coherence of optical beams in one dimensional photonic latticespt_BR
dc.typeDissertaçãopt_BR
dc.description.resumoThe propagation of a partially coherent optical field in a periodic photonic lattice with one-dimensional periodicity was investigated using the framework of Floquet-Bloch modes. The deterministic counterpart was explored by using a Gaussian source to establish a solid baseline for how the system responds to parameters: the influence of transverse momentum and lattice amplitude on beam propagation and participation coefficients was discussed. The stochastic aspect of the system was considered, where we described the interplay between lattice properties and field fluctuations by considering the optical beam as a superposition of Floquet-Bloch modes with coefficients being stationary random processes. The second-order theory of coherence was employed to demonstrate that the propagation of partially coherent optical fields depends on the excitation of bands and on the correlations between them. The role of spatial coherence in the system was explored through the cross-correlation participation coefficients, indicating how the power of the beam is distributed in terms of the band structure. In the end, we used the results to describe the dynamics of the beam center.pt_BR
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