Diffraction efficiency of polarization holographic gratings recorded in azopolymer thin films coated using different solvents

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creativework.keywordsAzopolymers, Diffraction efficiency, Photoinduced birefringence, Polarization holographic grating, Thin films
creativework.publisherSPIEspie@spie.orgen
dc.contributor.authorBlagoeva B.
dc.contributor.authorNedelchev L.
dc.contributor.authorMateev G.
dc.contributor.authorStoykova E.
dc.contributor.authorNazarova D.
dc.date.accessioned2024-07-10T14:27:04Z
dc.date.accessioned2024-07-10T14:49:33Z
dc.date.available2024-07-10T14:27:04Z
dc.date.available2024-07-10T14:49:33Z
dc.date.issued2020-01-01
dc.description.abstractWe present a study of the diffraction efficiencies of polarization holographic gratings recorded in thin films of the azopolymer PAZO (poly[1-[4-(3-carboxy-4-hydroxyphenylazo) benzenesulfonamido]-1,2-ethanediyl, sodium salt]). Two series of layers have been prepared using two different solvents - distilled water and methanol. The gratings are inscribed by two plain waves with orthogonal circular polarizations (left and right circular) from a He-Cd gas laser (442 nm) at recording angle 20°, corresponding to grating period 1.3 μm. Higher diffraction efficiency is obtained for the thin film samples spin-coated from the methanol solution for thicknesses below 600 nm. Diffraction efficiency higher than 27% was achieved, as well as surface relief height more than 500 nm.
dc.identifier.doi10.1117/12.2555756
dc.identifier.issn1996-756X
dc.identifier.issn0277-786X
dc.identifier.scopusSCOPUS_ID:85085241810en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/591
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85085241810&origin=inward
dc.titleDiffraction efficiency of polarization holographic gratings recorded in azopolymer thin films coated using different solvents
dc.typeConference Paper
oaire.citation.volume11367
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