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Diffraction Rings Pattern and Nonlinear Optical Properties of Hybrid ZnO-NPs / Epoxy Resin | ||
| Engineering and Technology Journal | ||
| Article 17, Volume 38, 3A, 2020, Pages 440-445 PDF (512.8 K) | ||
| DOI: 10.30684/etj.v38i3A.549 | ||
| Authors | ||
| Zahraa M. AL-Asady* ; Ali H. AL-Hamdani | ||
| Department of Laser and Optoelectronic Engineering, University of Technology, Iraq-Baghdad | ||
| Abstract | ||
| In this research, the diffraction ring patterns scan and single-beam Z-scan techniques were used to measure the nonlinear refractive index (n2) and nonlinear absorption coefficient (β). Nano-composite sample, which consists of zinc oxide nanoparticles (ZnO-NPs), and epoxy resin polymer. The sample was prepared by the casting method. A second harmonic generation Nd: YAG laser, which operates at 532 nm and intensity 3183 W/cm2 was used for the two techniques. Z-scan results showed that values for nonlinear refractive index n2 and nonlinear absorption coefficient β were obtained of 6.59*10-9 cm2/W and 1.75*10-3 cm/W respectively. While results for the D-scan technique showed that the number of rings increases with the increasing of laser power. | ||
| Keywords | ||
| UV-Vis absorption; Diffraction rings pattern technique; Z-scan technique and nonlinear optical properties | ||
| References | ||
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