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Substrate Effect on Poling Process of Nonlinear Optical Polymer Films

The effect of the substrate on the corona poling process of dye-doped poly(methyl methacrylate) films is investigated for nonlinear optics (NLO). It is found that poled films on soda-lime glass exhibit much larger nonlinear susceptibility than do those on fused quartz. This strange result is well explained by considering the volume resistivity of the substrate.