Single Beam Z-Scan Measurements of Nonlinear Refraction and Nonlinear Absorption Coefficients in Silver Nano-Fluid | Science Publications

American Journal of Engineering and Applied Sciences

W. M.M. Yunus¹  Esmaeil Shahriari¹ 

关键词: Self-defocusing;    nonlinear optics;    nano-metal;    thermal effects;   

DOI  :  10.3844/ajeassp.2010.98.101

学科分类：工程和技术（综合）

来源: Science Publications

【 摘 要 】

Problem statement: The nonlinear refractive index and nonlinear absorption are two important optical phenomena which are extensively used in optical switching, optical limiting and labeling. Approach: In the present research we had measured nonlinearity of Ag nano-fluid prepared using Γ-irradiation method. The measurement was carried out using a single beam z-scan technique. Under a CW laser beam excitation operated at 532 nm with the power output of 40 mW, a closed aperture setup was used for thermal-induced nonlinear refractive index and an open aperture setup was applied for measuring nonlinearity absorption. Results: We measured the nonlinear refraction coefficient and nonlinear absorption coefficients for silver nano-fluid at concentration 6.475

【 授权许可】

Unknown