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Surface relief gratings formed on a liquid-crystalline azobenzene polymer film known as a highly sensitive system were investigated to obtain deeper insights into polymer migration on the micrometer scale. A surface relief formation was induced with incoherent nonpolarized patterned blue-light using a photomask instead of interference patterns of a coherent laser. Spontaneous lateral migration was...
Generation of surface relief grating (SRG) in hybrid films containing an azobenzene-functionalized polymer (6Az10-PVA) and a nematic liquid crystal molecule, 4'-pentyl-4-cyanobiphenyl (5CB) is described. The sinusoidally modulated surface structures due to large-scale substance migration in the hybrid film were formed upon exposure to interferometric argon ion (Ar + ) laser beam in a strikingly...
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