Interactions, Electron- and Energy-Exchange of Molecular and Electronic Defects in Ionic Solids

离子固体中分子和电子缺陷的相互作用、电子和能量交换

• 批准号: 9632959
• 负责人: Fritz Luty
• 金额: $ 13万
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-15 至 2001-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9632959&HistoricalAwards=false
• 关键词: Interactions; Electron; Energy; Exchange; Molecular

9632959 Luty This project studies the electronic and vibrational excitation, energy- migration, and relaxation processes, involving various molecular and electronic defects in ordered and disordered ionic solids. Research will include electron-vibration energy transfer processes between F- centers and molecular defects will be investigated using resonance Raman scattering, vibrational luminescence and Fourier transform infra- red spectroscopy. A newly developed technique will be used to produce high-quality ultra-thin crystals in the range 0.2 -100 mm. The influence of the mesoscopic size on the films on the energy-transfer and phase behavior of the materials will be investigated and may lead to new optical materials or research possibilities. %%% This project involves the study of the optical properties of materials which are typically used in laser devices. One area of interest is that of energy transfer processes that need to be understand in order to optimize the optical and lasing properties of the materials. Another important area is that of thin films of optical materials, where the reduced size of the medium changes the properties of in crystals in new and incompletely understood ways. The study of these materials may lead to new laser materials or devise applications. ***

小行星9632959 本计画研究有序与无序离子固体中的电子与振动激发、能量迁移与弛豫过程，包括各种分子与电子缺陷。 研究将包括F-中心和分子缺陷之间的电子振动能量转移过程，将使用共振拉曼散射，振动发光和傅里叶变换红外光谱进行研究。一种新开发的技术将用于生产0.2 - 100 mm范围内的高质量超薄晶体。将研究介观尺寸对薄膜的能量传递和材料相行为的影响，并可能导致新的光学材料或研究可能性。 该项目涉及研究激光设备中常用材料的光学特性。感兴趣的一个领域是需要理解的能量传递过程，以优化材料的光学和激光特性。 另一个重要的领域是光学材料薄膜，其中介质的减小尺寸以新的和不完全理解的方式改变晶体的性质。对这些材料的研究可能会导致新的激光材料或设计应用。 ***