Engineering Creativity Award: Nonlinear Optical CompositiesUsing Nonlinear Organic Molecules in Inorganic Matrices

工程创意奖：在无机基体中使用非线性有机分子的非线性光学复合材料

• 批准号: 8811629
• 负责人: Bruce Dunn
• 金额: $ 8.94万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-09-01 至 1992-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8811629&HistoricalAwards=false
• 关键词: Engineering; Creativity; Award; Nonlinear; Optical

The goal of this research project is to create electrooptical devices for optical communications and/or computing systems using nonlinear optical materials. In particular, nonlinear optical composites will be fabricated and characterized by placing highly nonlinear organic molecules in inorganic matrices. Nonlinear effects have been shown to be much larger in organics compared to the best inorganics. Significant fabrication problems exist, however, in developing materials containing organic molecules. A possible solution to these problems lies in the sol-gel process for making glass. In this project, sol-gel solutions will be used as the host material for optical organic molecules. The new organic- inorganic composite material will be formed by mixing nonlinear optical organics into the sol-gel solution so that SiO2 is the host. The sol-gel should form a SiO2 cage around each organic molecule locking it in place. Alignment of the organic molecule composites is accomplished by the poling techniques in order to observe the necessary second order effects. By depositing sucessive layers of sol-gel with different indices, nonlinear optical waveguides can be realized. The general plan of research is essentially synthesis (fabrication), characterization (of materials), and device realization.

该研究项目的目标是使用非线性光学材料创建用于光通信和/或计算系统的电光器件。 特别是，非线性光学复合材料将通过将高度非线性的有机分子放置在无机基体中来制造和表征。 与最好的无机物相比，有机物的非线性效应已被证明要大得多。 然而，在开发含有有机分子的材料时存在重大的制造问题。 这些问题的可能解决方案在于制造玻璃的溶胶-凝胶工艺。 在该项目中，溶胶-凝胶溶液将用作光学有机分子的主体材料。 将非线性光学有机物混合到溶胶-凝胶溶液中，以SiO2为主体，形成新型有机-无机复合材料。 溶胶-凝胶应在每个有机分子周围形成 SiO2 笼，将其锁定到位。 有机分子复合材料的排列是通过极化技术完成的，以便观察必要的二阶效应。 通过沉积不同折射率的连续层溶胶-凝胶，可以实现非线性光波导。 研究的总体计划本质上是合成（制造）、表征（材料）和器件实现。