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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/66236
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dc.contributor.authorFrejlich, J.-
dc.contributor.authorFreschi, A. A.-
dc.contributor.authorGarcia, P. M.-
dc.contributor.authorShamonina, E.-
dc.contributor.authorGayvoronsky, V. Ya-
dc.contributor.authorRinghofer, K. H.-
dc.date.accessioned2014-05-27T11:19:56Z-
dc.date.accessioned2016-10-25T18:16:32Z-
dc.date.available2014-05-27T11:19:56Z-
dc.date.available2016-10-25T18:16:32Z-
dc.date.issued2000-09-01-
dc.identifierhttp://dx.doi.org/10.1364/JOSAB.17.001517-
dc.identifier.citationJournal of the Optical Society of America B: Optical Physics, v. 17, n. 9, p. 1517-1521, 2000.-
dc.identifier.issn0740-3224-
dc.identifier.urihttp://hdl.handle.net/11449/66236-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/66236-
dc.description.abstractWe propose a mathematical model for the movement in absorbing materials of photorefractive holograms under feedback constraints. We use this model to analyze the speed of a fringe-locked running hologram in photorefractive sillenite crystals that usually exhibit a strong absorption effect. Fringe-locked experiments permit us to compute the quantum efficiency for the photogeneration of charge carriers in photorefractive crystals if the effect of bulk absorption and the effective value of the externally applied field are adequately taken into consideration. A Bi12TiO20 sample was measured with the 532-nm laser wavelength, and a quantum efficiency of φ = 0.37 was obtained. Disregarding absorption leads to large errors in φ. © 2000 Optical Society of America.en
dc.format.extent1517-1521-
dc.language.isoeng-
dc.sourceScopus-
dc.subjectFeedback control-
dc.subjectLight absorption-
dc.subjectPhotorefractive materials-
dc.subjectQuantum efficiency-
dc.subjectPhotogeneration-
dc.subjectHolograms-
dc.titleFeedback-controlled running holograms in strongly absorbing photorefractive materialsen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)-
dc.contributor.institutionUniversity of Osnabrück-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionAcad. da Força Aérea-
dc.contributor.institutionNational Academy of Sciences-
dc.description.affiliationLaboratório de Óptica Instituto de Física Universidade Estadual de Campinas, Caixa Postal 6165, 13083-970 Campinas-SP-
dc.description.affiliationDepartment of Physics University of Osnabrück, D-49069 Osnabrück-
dc.description.affiliationDepartamento de Física Universidade Estadual Paulista, Rio Claro-SP-
dc.description.affiliationAcad. da Força Aérea, Pirassununga-SP-
dc.description.affiliationInstitute of Physics National Academy of Sciences, 252650 Kiev-
dc.description.affiliationUnespDepartamento de Física Universidade Estadual Paulista, Rio Claro-SP-
dc.identifier.doi10.1364/JOSAB.17.001517-
dc.rights.accessRightsAcesso restrito-
dc.identifier.file2-s2.0-0034402206.pdf-
dc.relation.ispartofJournal of the Optical Society of America B: Optical Physics-
dc.identifier.scopus2-s2.0-0034402206-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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