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

本课题研究有序和无序离子固体中各种分子和电子缺陷的电子和振动激发、能量迁移和弛豫过程。研究将包括F-中心之间的电子-振动能量传递过程和分子缺陷将使用共振拉曼散射，振动发光和傅立叶变换红外光谱进行研究。一项新开发的技术将用于生产0.2 -100毫米范围内的高质量超薄晶体。研究薄膜的介观尺寸对材料的能量转移和相行为的影响，并可能导致新的光学材料或研究的可能性。这个项目涉及研究通常用于激光设备的材料的光学特性。我们感兴趣的一个领域是能量传递过程，为了优化材料的光学和激光特性，我们需要了解这个过程。另一个重要的领域是光学材料的薄膜，其中介质尺寸的减小以新的和不完全理解的方式改变了晶体的性质。对这些材料的研究可能会导致新的激光材料或器件的应用。* * *

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. ***