Design and Synthesis of Linear Electo-optic Effect A* Materials

建议：9321110摘要日期：1994年6月1日PI：M.D.Wand机构：Displaytech，Inc.这个小型企业创新研究(SBIR)第二阶段项目涉及温度不敏感的铁电液晶的设计、合成和表征，这些液晶易于取向，具有广泛的手性近晶A范围，并显示出较大的电倾斜效应。这种FLC表现出线性电光效应，其允许在没有部分域切换的情况下进行灰色调制。具体地说，第二阶段的研究将合成80-120种新型Flc，测试它们对专有Displaytech近晶B掺杂剂的温度不敏感性的能力，并测试和优化向列相诱导N*诱导Displaytech掺杂剂的能力。实现这些目标将允许最佳模拟液晶混合物的配方，将在两个设备中进行评估，用于模拟波束控制应用的线性阵列调制器和单元件连续灰度调制器。高速模拟强度调制器基于表现出大的电倾斜效应的温度不敏感的FLC，将在平板显示器、模拟光束偏转器、用于成像光谱仪的连续可调双折射滤光器和神经网络中得到应用。这些技术具有很高的现实意义和战略重要性。

Proposal: 9321110 ABSTRACT Date: 6/1/94 PI: M.D. Wand Institution: Displaytech, Inc. This Small Business Innovation Research (SBIR) Phase II project deals with the design, synthesis and characterization of temperature insensitive ferroelectric liquid crystals (FLC) which are easily aligned, have a broad operating chiral smectic A range and show a large electroclinic effect. Such FLCs show a linear electro-optic effect which permits gray modulation without partial domain switching. Specifically, the Phase II research will synthesize 80-120 new FLCs, test their ability to induce temperature insensitivity of proprietary Displaytech smectic B dopants, and test and optimize for nematic phase induction N*-inducing Displaytech dopants. Achieving these objectives will permit the formulation of the best analog liquid crystal mixture which will be evaluated in two devices, a linear array modulator for analog beam steering applications and a single element continuous grayscale modulator. High speed analog intensity modulators, based on temperature insensitive FLCs showing a large electroclinic effect will find applications in flat panel displays, analog beam deflectors, continuously tunable birefringence filters useful in imaging spectrometers, and neural networks. These technologies are of high current interest and strategic importance.