Abstract
The nonlinear optical properties of ZnO nanoparticles dispersed in poly (vinylidene fluoride) (PVDF) polymer are investigated. PVDF/ZnO nanocomposites were prepared by mixing different concentrations of ZnO nanoparticles, as the filler, with PVDF, as the polymer matrix, using casting method. Acetone was used as a solvent for the polymer. FTIR spectra of the samples were analyzed thus confirming the formation of α and β phases. The absorbance spectra of the samples were obtained, thereby showing high absorption in the UV region. The linear absorption coefficient was calculated. The single-beam Z-scan technique was used to measure the nonlinear refractive index and the nonlinear absorption coefficient of the PVDF/ZnO nanocomposite samples. We observed that the nonlinear refractive index is in the order of 10−13 cm2/W with the negative sign, whereas the nonlinear absorption coefficient is in the order of 10−8 cm/W.
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The authors would like to acknowledge the contribution and the financial support by the Malaysian Ministry of Higher Education and Universiti Kebangsaan Malaysia under research grant (FRGS/1/2013/SG02/UKM/01/1).
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Shanshool, H.M., Yahaya, M., Yunus, W.M.M. et al. Measurements of Nonlinear Optical Properties of PVDF/ZnO Using Z-Scan Technique. Braz J Phys 45, 538–544 (2015). https://doi.org/10.1007/s13538-015-0345-8
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DOI: https://doi.org/10.1007/s13538-015-0345-8