Analysis of the kinetics of phase and amplitude gratings recorded in azopolymer films

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dc.contributor.authorFreschi, A. A. [UNESP]
dc.contributor.authorCortes, A. D S [UNESP]
dc.contributor.authorDonatti, D. A. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2014-05-27T11:23:33Z
dc.date.available2014-05-27T11:23:33Z
dc.date.issued2008-05-21
dc.description.abstractIn this work we use a stabilized holographic technique to study both refractive index and absorption gratings recorded in thin films made of Disperse Red 1 (DR1) embedded in an organic polymer matrix (PMMA) deposited on glass substrate. Gratings are recorded by linearly polarized illumination with the interference pattern of two crossing beams. One of the beams is phase modulated and the interference signals between the transmitted and diffracted waves are detected by a tuned lock-in amplifier. The technique allows measuring separately changes of the refractive index and the absorption coefficient during the course of the photoreaction process. The time evolution of the diffraction efficiencies during recording has shown bi-exponential kinetics for both gratings. © 2008 American Institute of Physics.en
dc.description.affiliationDepartamento de Física Instituto de Geociências e Ciências Exatas Universidade Estadual Paulista (UNESP), Caixa Postal 178, 13500-970, Rio Claro, SP
dc.description.affiliationLaboratório de Óptica Instituto de Física Gleb Wataghin Universidade Estadual de Campinas (UNICAMP), Caixa Postal 6165, 13083-970, Campinas, SP
dc.description.affiliationUnespDepartamento de Física Instituto de Geociências e Ciências Exatas Universidade Estadual Paulista (UNESP), Caixa Postal 178, 13500-970, Rio Claro, SP
dc.format.extent356-360
dc.identifierhttp://dx.doi.org/10.1063/1.2926886
dc.identifier.citationAIP Conference Proceedings, v. 992, p. 356-360.
dc.identifier.doi10.1063/1.2926886
dc.identifier.file2-s2.0-43649088409.pdf
dc.identifier.issn0094-243X
dc.identifier.issn1551-7616
dc.identifier.lattes3538107401166553
dc.identifier.scopus2-s2.0-43649088409
dc.identifier.urihttp://hdl.handle.net/11449/70415
dc.identifier.wosWOS:000255857900061
dc.language.isoeng
dc.relation.ispartofAIP Conference Proceedings
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.titleAnalysis of the kinetics of phase and amplitude gratings recorded in azopolymer filmsen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://publishing.aip.org/authors/web-posting-guidelines
unesp.author.lattes3538107401166553
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Geociências e Ciências Exatas, Rio Claropt

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Artigos - Física - IGCE