Numerical calculation of Z-scan measurements for nonlinear media with large phase shift  

作　　者：M.D.Zidan A.Allahham 

机构地区：[1]Department of Physics,Atomic Energy Commission of Syria,P.O.Box 6091,Damascus,Syria

出　　处：《Optoelectronics Letters》2024年第3期177-182,共6页光电子快报（英文版）

摘　　要：We have reported the characteristics of a Z-scan for the poly(azaneylylidene-acylene)(DAZA) polymer, as nonlinear medium with a large nonlinear phase shift using continuous-wave(CW) laser beam. It has been verified that the Fresnel diffraction model is applicable for analyses of Z-scan measurements with DAZA polymer at high laser power. It was found that Z-scan curves with peak-to-valley features appear as the applied light intensity increases in the case of a large nonlinear phase shift. The Z-scan experiments were carried out using a CW laser to verify the theoretical calculations in the case of a large nonlinear phase shift model. Our results show good agreements between the experimental data and the proposed theoretical models.

关 键 词：NONLINEAR PHASE MEDIA 

分 类 号：TN249[电子电信—物理电子学] O437[机械工程—光学工程]