Synthesis and characterization of novel nonlinear optical polyimide

224 p.Nonlinear optical (NLO) polymers have attracted extensive attention because of their potential applications in integrated optical devices such as optical switching, frequency conversion and high-speed electro-optic (EO) devices. However, the stability and optical loss of currently used polymers limit their applications. It is very important to develop NLO polymers with better transparency and higher stability without sacrificing other properties. This study focused on the development of new side-chain NLO polyimides based on the novel fluoronitroaryl diaminoazobenzene chromophores and polyimide/silicon composites. The effects of the fluorine and the fluorine position in the chromophores on the structures and properties of the chromophores and polyimides were studied. The influences of the silicon network on the properties of the composite films were also investigated.DOCTOR OF PHILOSOPHY (MSE