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SEYYED MAHDI SHAVAKANDI1, SOHEIL SHARIFI1,*
- Department of Physics, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
The nonlinear optical properties of Acid Blue 29 dyes inside of microemulsion have been studied using Z-scan technique. Experiments are performed using a CW Diode laser at 532nm wavelength and 80mW power. The nonlinear refractive index (n2), nonlinear absorption coefficient,(ß) hyperpolarizabilities(γR), nonlinear susceptibility(χR) and are measured at three concentrations in microemulsion. The droplets were produced by mixture of water, cetyltrimethylammonium bromide (CTAB) and 1-butanol. The results show that there is an increasing trend in the value of the NLO as the concentration increases. The dynamic light scattering and SAXS experiments are used to understanding the effect of dye in dynamic and structure of droplets. Oil dispersions of water droplets are shown the collective diffusion coefficients reduce linearly with the increase of volume fraction and the increase with the increase of Acid Blue 29 (AB29) concentration. A theoretical model based on mixtures of hard spheres droplets, is applied to X-Ray Scattering data. The result shows, the size of droplets is constant with change of droplet concentration, but it varies from 9.5 to 7.6nm with the increase of Acid Blue 29 amount from 1.0 to 2.3mM and the size polydispersity is constant for all samples..
Acid Blue, CTAB, Nonlinear Optics, SAXS.
Submitted at: Feb. 28, 2017
Accepted at: Oct. 10, 2017
SEYYED MAHDI SHAVAKANDI, SOHEIL SHARIFI, Nonlinear properties of Acid Blue 29 Dye in CTAB/1-butanol/water microemulsion, Journal of Optoelectronics and Advanced Materials Vol. 19, Iss. 9-10, pp. 604-609 (2017)
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