Nonlinear Optical Properties of Colloidal Microparticles

本研究涉及线性和非线性光学 胶体微粒的性质。 述微粒是 通过缩合、氧化还原等方法制备 反应和电分散。 非线性光学 性能进行了研究，使用倍频输出的 Nd：YAG激光器在532 nm处用于简并四波混频。 一 三阶磁化率的确定是由 光相位共轭信号的强度是由光相位共轭信号中产生的。 四波混频 的非线性光学性质 微粒被确定为簇大小的函数， 混合物. 这些研究是有意义的，因为它们：a）将 允许直接测试理论的预测，B）将增强 目前对量子尺寸效应的理解，c）有 可能应用于新型光开关、光闸等。 （d）将提高少数民族的教育质量 本科院校。

This research is concerned with linear and non-linear optical properties of colloidal microparticles. The microparticles are prepared by methods such as condensation, oxidation-reduction reaction, and electrical dispersion. The nonlinear optical properties are investigated using the frequency-doubled output of a Nd:YAG laser at 532 nm for degenerate four-wave mixing. A determination of the third-order susceptibility is made from the intensity of the optical phase conjugate signal generated in the four-wave mixing. The nonlinear optical property of the microparticles is determined as the function of cluster size and composition. These studies are of interest because they: a) will allow a direct test of the predictions of theory, b) will enhance the current understanding of the quantum size effects, c) have possible application in new optical switches, optical gates, etc. and d) will enhance quality of education at a minority undergraduate institution.