Optical EngineeringRelaxation of induced dichroism in corona-poled doped polymers
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Measurement of optical absorbance is used to study the relaxation of acrylic film doped with Disperse Red 1 and poled with an electric field produced by the corona effect. Time variation of dichroism is studied over 10 days and results are adjusted with different time functions. Second-harmonic generation is presented as a test of the lack of symmetry of the poled film resulting from the orientation process.