In the present study, we report the growth of silver nanoparticles in SiO2 matrix by co- sputtering
technique. The effect of deposition conditions on the formation of Ag nanoparticles were systematically
studied using scanning electron microscopy (SEM), UV-Vis absorption studies. The optical absorptive
nonlinearity of the nanoparticles was studied by using open aperture Z- scan techniques. The surface
plasmon peak in the absorption spectra indicates the presence of Ag nanoparticles in the matrix. The open
aperture Z-scan studies shows the Ag- SiO2 nanocomposites can be used as a good optical limiter.
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