Abstract
Nonlinear optical properties including size and sign of nonlinear refractive index and nonlinear absorption coefficient of Graphene Oxide (GO), Ag2S@ZnS quantum dots and GO-Ag2S@ZnS were investigated using a Z-scan technique by laser diode with 532 nm wavelength. Third-order susceptibility of the compounds was calculated and compared with the reported values. By comparing the nonlinear optical (NLO) properties of GO and the mixture of GO-Ag2S@ZnS, it was observed that the NLO properties of GO were increased using simply mixing with Ag2S@ZnS quantum dots. It was also observed that with increase of sonication time, the NLO properties of the mixture increased accordingly.
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