Diffraction Rings Pattern and Nonlinear Optical Properties of Hybrid ZnO-NPs / Epoxy Resin

Authors

• Zahraa AL-Asady, Department of Laser and Optoelectronic Engineering, University of Technology, Iraq-BaghdadFollow
• Ali AL-Hamdani, Department of Laser and Optoelectronic Engineering, University of Technology, Iraq-Baghdad

Keywords

UV-Vis absorption, Diffraction rings pattern technique, Z-scan technique and nonlinear optical properties

Document Type

Research Paper

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.

Recommended Citation

AL-Asady, Zahraa and AL-Hamdani, Ali (2026) "Diffraction Rings Pattern and Nonlinear Optical Properties of Hybrid ZnO-NPs / Epoxy Resin," Engineering and Technology Journal: Vol. 38: Iss. 3, Article 17.
DOI: https://doi.org/10.30684/etj.v38i3A.549

DOI

10.30684/etj.v38i3A.549

First Page

440

Last Page

445