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Nonlinear Optical Properties of CdS Thin Film Nanoparticles Using z-Scan Technique | ||
| Iraqi Journal of Laser | ||
| Article 1, Volume 6, Issue 1, 2007, Pages 9-14 | ||
| Authors | ||
| Zainab F. Mahdi; Dawood O. Altaify | ||
| Abstract | ||
| Abstract: In the present work, a z-scan technique was used to study the nonlinear optical properties, represented by the nonlinear refractive index and nonlinear absorption coefficients of nanoparticles cadmium sulfide thin film. The sample was prepared by the chemical bath deposition method. Several testing were done including, x-ray, transmission and thickness of thin film. z-Scan experiment was performed at two wavelengths (1064 nm and 532 nm) and different energies. The results showed the effect of self-focusing in the material at higher intensities, which evaluated n2 to be (0.11-0.16) cm2/GW. The effect of two-photon absorption was studied, which evaluated β to be (24-106) cm/GW. In addition, the optical limiting behavior has been studied. The results confirmed the capability of the sample to be used as optical limiter device. | ||
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