Abstract
Photoinduced second-order optical susceptibility was discovered at lambda =1.54 um Er:glass fundamental laser beam for the electrochemically synthesized ZnS nanocrystallites embedded into three different polymer matrices: polymethyl methacrylate (PMMA), polyvinyl alcohol (PVA) and polycarbonate (PC). Crucial role of the polymer matrix is shown as well as an important role of the electrolytical treatment time for the observed ZnS NP. It was discovered that the electrochemically treatment time are dependent on the output ZnS nanocrystallites and their aggregation and morphology. Undergoing to polymer nanocomposites gives different output SHG efficiency. Because the second harmonic generation cannot be present in pure ZnS nanoparticles due to their centrosymmetric structure principal role here should play nanocrystal interfaces and their aggregation which defines the photoinduced SHG. (C) 2016 Elsevier B.V. All rights reserved.