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Journal of Nanomaterials
Volume 2017 (2017), Article ID 4803843, 9 pages
Research Article

Optical Nonlinear Properties of Gold Nanoparticles Synthesized by Laser Ablation in Polymer Solution

1Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
2Materials Synthesis and Characterization Laboratory, Advanced Institute of Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
3Department of Physics, Faculty of Natural Sciences, Ibrahim Badamasi Babangida University, Lapai 234066, Nigeria
4Department of Physics, Faculty of Science, Islamic Azad University Branch of Science and Research, Tehran, Iran

Correspondence should be addressed to A. B. Zakaria

Received 4 November 2016; Revised 16 January 2017; Accepted 24 January 2017; Published 22 February 2017

Academic Editor: Giuseppe Compagnini

Copyright © 2017 M. Tajdidzadeh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


In the present study, gold nanoparticles were synthesized in various polymer solutions by means of employing laser ablation technique at the same ablation time. Specifically, gold nanoparticles were synthesized in polyethylene glycol and chitosan solutions, in order to compare the effects of the liquid media which served as stabilizers for particle size and volume fraction of nanoparticles. In addition, this experiment was repeated in distilled water for reference purposes. As the findings indicated, the particle size which was obtained in polyethylene glycol was about 7.49 nm, that is, smaller than those of chitosan solution and distilled water, respectively. In contrast, it was observed that the volume fraction of gold nanoparticles increased in polyethylene glycol in comparison with the other media which indicated an effect on the formation of NPs. On the other hand, Z-scan technique was employed to measure the nonlinear refractive index and nonlinear absorption coefficient of nanofluids containing gold nanoparticles. Consequently, the nonlinear properties of nanofluids pointed to a significant contribution with the number of nanoparticles observed in fluids and both optical nonlinear parameters were observed to increase by means of a prior increase in the volume fraction of Au-NPs in polyethylene glycol solution.