Using the Host/Guest Relationship in the Synthesis and Design of Inorganic Non Linear Optic Materials

本课题的目的是利用包合化学来合成和表征可微调和切换的纳米复合材料的电光材料。初步的研究表明，我们有能力定义一大类材料的组成相空间，这些材料与已知的主要非线性光学晶体之一KTP具有相同的拓扑结构。第二个包裹体结构族ABCO4的相空间正在被探索，并已被证明包含具有0.2 um光学窗口和大SHG系数的成员。可逆气相吸附、客体/主体界面化学和固态取代化学被用于改变与SHG和相匹配相关的电光行为。利用多种合成技术进行探索性研究，以寻找新的非线性光学包涵体。本研究的第二个目标是检验非线性光学响应作为外加电场、温度和压力引起的外部诱导原子位移的函数。探索性合成新的结构类型将利用在上述研究中确定的结构/性质关系。

The objective of this proposal is to use inclusion chemistry to synthesize and characterize electro-optic materials which can be fine tuned and switched as nanocomposites. The preliminary research has demonstrated our ability to define the compositional phase space of an extensive class of materials which have the same topology as one of the premier nonlinear optic crystals known, KTP. The phase space of a second inclusion structural family, ABCO4, is being explored and has been shown to contain members with optical windows to 0.2 um and large SHG coefficients. Reversible gas phase adsorption, guest/host interace chemistry, and solid state substitution chemistry are being used to modify electro-optic behavior with respect to SHG and phase matching. Exploratory research using a variety of synthetic techniques is proposed in our search for new nonlinear optic inclusion hosts. A second objective of this research is to examine the nonlinear optic response as a function of externally induced atomic displacements by applied electric field, temperature, and pressure. Exploratory synthesis into new structural types will make use of the structure/property relationships determined in the above studies.