Research Equipment Grant: Langmuir/Blodgett Deposition Apparatus

交替层Langmuir/Blodgett槽和支撑系统 将使用设备对沉积物进行研究， 聚合物膜的表征。 的材料 被选作检查的将是具有取代染料的聚合物 选择它们的非线性光学性质。 二阶 非线性性能，如二次谐波产生和 线性电光效应，将测量完成 电影组合。 程序集必须保持非中心对称 如果他们想生产出超大型的 预测的效果。 因此，组件构建在 使用活性聚合物交错的交替层方式 用惰性有机层或用其它活性物质 合成以呈现每对的净非对称顺序， 层次。 新型非线性材料的开发是一个关键 技术问题。 光纤通信系统需要 开关、调制器和色散的发展 赔偿 有机分子，如血蓝蛋白染料， 具有已知的最大二阶非线性系数。 Langmuir/Blodgett允许多单层的发展 可以在电影中提供性能的电影架构 组装预期的分子行为。 因此，研究 致力于研究有机和聚合物材料 可以为未来的光学系统提供关键部件。

An alternating layer Langmuir/Blodgett trough and support system equipment will be used to conduct research on the deposition and characterization of ultrathin polymeric films. The materials chosen for examination will be polymers with substituted dyes selected for their nonlinear optical properties. Second order nonlinear performance, such as second harmonic generation and the linear electro-optic effect, will be measured for the completed film assemblies. The assemblies must maintain noncentrosymmetric order throughout if they are to produce the extraordinary large effects predicted. Thus, the assemblies are built up in an alternating layer fashion using the active polymer interleaved with either inert organic layers or with other active species synthesized to present a net nonsymmetric order for each pair of layers. The development of novel nonlinear materials is a critical technological issue. Optical fiber communication systems require the development of switches, modulators, and dispersion compensation. Organic molecules, such as hemocyanin dyes, possess the largest second order nonlinear coefficients known. The Langmuir/Blodgett permits the development of multi-monolayer film architectures which may provide the performance in the film assembly expected from the molecular behavior. Thus, research devoted to studying interleaved organic and polymeric materials may provide key components for optical systems of the future.