Stabilized Silver nanoparticles (AgNPs) are synthesized and incorporated in an organosiloxane matrix and are investigated for optical nonlinearity at 527 nm using nanosecond pulses and Z-scan technique. AgNPs were synthesized through a chemical reduction of silver nitrate, which is functionalized with (3-Mercaptopropyl)triethoxysilane (MPTMS) and incorporated into an organosiloxane matrix. The reactive thiol- groups of MPTMS bind to AgNPs through ligand-mediated binding, which serve as a capping agent. The Z-scan results showed the drastic increase in nonlinear optical response of AgNP/sol for increasing input energies. The strong nonlinearity is attributed mainly to the metallic plasmon enhanced nonlinear absorption and nonlinear scattering.

合成了稳定的银纳米颗粒（AgNPs），并将其掺入有机硅氧烷基质中，并使用纳秒脉冲和Z扫描技术研究了527 nm处的光学非线性。通过化学还原硝酸银合成AgNP，硝酸银用（3-巯基丙基）三乙氧基硅烷（MPTMS）官能化并掺入有机硅氧烷基质中。MPTMS的反应性巯基通过配体介导的结合与AgNP结合，充当封端剂。Z扫描结果表明，随着输入能量的增加，AgNP / sol的非线性光学响应急剧增加。强烈的非线性主要归因于金属等离子体激元增强的非线性吸收和非线性散射。