AMPC  Vol.2 No.1 , March 2012
Third Order Optical Nonlinearities of C450 Doped Polymer Thin Film Investigated by the Z-Scan
ABSTRACT
In the present work, z-scan technique was used to study the nonlinear properties, represented by nonlinear refractive index and nonlinear absorption coefficient for Coumarin 450 (C450) doped PMMA as a function of concentration for two different solvents. The results show change of the effect from self-focusing to self-defocusing in closed aperture z-can (or change of the effect from two photon absorption to saturable absorption in open aperture z-scan), when the sample dissolved in low viscosity and more polar solvent

Cite this paper
Z. S. Sadik, D. H. Al-Amiedy and A. F. Jaffar, "Third Order Optical Nonlinearities of C450 Doped Polymer Thin Film Investigated by the Z-Scan," Advances in Materials Physics and Chemistry, Vol. 2 No. 1, 2012, pp. 43-49. doi: 10.4236/ampc.2012.21007.
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