Synthesis and Optical Studies of Oxides, Oxoanion Fluorides,and Fluorides

这项工作的目标是制备固态无机氧化物、磷酸盐氟化物和氟化物，这些氟化物可能用作光学频率转换器和激光晶体。频率转换器的准备工作涉及选定硼酸盐晶体化学的发展。随着宏观d系数计算微观超极化率（β）和阴离子群理论的持续应用，对这些材料的理解得到了进步。与激光主机合作的重点是STACK系列材料的开发和新磷酸盐氟化物和氟化物的合成。这些材料的合成将为二极管泵浦或高截面、高功率激光系统的研究提供各种新的晶体。本工作的目的是合成和研究可用于激光晶体或光学二次谐波发生器的新型固体陶瓷。在设计或选择具有合适光学特性并能生长成大单晶的新材料时，应用了反应和晶体化学中的简单概念。这些材料的光学研究为测试和发展概念和材料本身的适用性提供了基础。实现具有优越特性的材料很可能为从工业制造到活细胞全息照相的x射线产生等应用提供高功率激光的新光源。

The goal of this work is to prepare solid-state inorganic oxides, phosphate fluorides, and fluorides that may find use as optical frequency converters and laser crystals. Preparative work with frequency converters involves the develpment of crystal chemistry of selected borates. The understanding of these materials are advanced with the computation of microscopic hyperpolarizabilities (beta) from macroscopic d coefficients and continuing applications of the anionic group theory. Work with laser hosts focuses on the development of materials in the STACK family and synthesis of new phosphate fluorides and fluorides. The synthesis of these materials should provide a variety of new crystals for study in diode-pumped or high cross-section, high-power laser systems. %%% The objective of this work is to synthesize and study new solid- state ceramics that may be used as laser crystals or optical second-harmonic generators. Simple concepts in reaction and crystal chemistry are implemented in designing or selecting new materials that have suitable optical characteristics and can be grown as large single crystals. Optical studies of these materials provides the basis for testing and developing the applicability of the concepts and materials themselves. The realization of materials having superior characteristics may well afford new sources of high-power laser light for applications ranging from industrial manufacturing to the generation of x-rays for living- cell holography.