Nonlinear Optical Properties, Optical Limiting and Optical Switching of Ag Nanoparticles Prepared by a Green Synthetic Method

• 作者: Fryad Z. Henari Hacene Manaa
• 来源期刊: 光学与光子学期刊(英文)
• 学科: 化学
• 关键词: Green Synthesis Ag NANOPARTICLES Nonlinear OPTICAL Properties OPTICAL LIMITING OPTICAL SWITCHING
• 年，卷（期）: 2018,（7）
• 页码范围: 235-246
• 页数: 12页
• 分类号: O6

摘要

Silver nanoparticles were synthesized using an aqueous extract of cinnamon berks (cinnamon cassia) as a reducer and stabilizer. The synthesized silver nanoparticles were characterized using UV-Vis spectrometry and Transmission Electron Microscopy (TEM), which revealed the nano nature of the particles. Nonlinear absorption and nonlinear refraction were measured using a Z-scan technique at different wavelengths with CW lasers. The third order nonlinear susceptibility was found to be between (1.5 to 22) ×10-14 m2/V2. The nonlinear property of the synthesized silver nanoparticles was used to demonstrate optical limiting and all-optical switching. An optical limiting threshold was found to be 0.1 mW at 632.8 nm.