Applied Physics Letters · 2000 · 49 citations · 12 references
Natural SciencesMaterials EngineeringMaterials ScienceOptical MaterialsOpticsSurface ScienceOptical Properties Of SolidsOptical Thin FilmsPolarization OpticsThin Film Optical PropertiesLangmuir FilmsLangmuir-blodgett FilmsOptical AnisotropyPhase GratingsPolarizationPolarization AnisotropyPolarization PatternPolarization Properties
An investigation was carried out on thin permanent phase polarization gratings recorded in Langmuir–Blodgett films using two orthogonal circularly polarized Ar-ion laser beams. The films are composed of amphiphilic azo-dye molecules and manifest an extremely large value of photoinduced optical anisotropy, Δn≈0.36. The experimental results are in excellent accord with the theoretical model based on the Jones matrix representation of the polarization pattern. The gratings are stable at least, for half a year.
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