Vibrational and Chemical Dynamics of Crystalline and Amorphous Solids

这个项目的目标是了解如何振动 固体中的受激分子会耗散它们多余的机械能， 能量，以及这种耗散过程与化学物质的关系 固体中的反应速率。 这些过程是实验性的 使用时间依赖的技术进行研究 光谱学，特别是在超快时间域。 研究将在三个具体领域进行：（1） 振动弛豫和振动 分子晶体中的冷却，（2）分子晶体的光学损伤研究 晶体、聚合物和玻璃;（3）化学反应 玻璃态基质中的动力学。

The goal of this project is to understand how vibrationally excited molecules in solids dissipate their excess mechanical energy, and how this dissipation process is related to chemical reaction rates in solids. These process are experimentally investigated using the techniques of time dependent spectroscopy, particularly in the ultrafast time domain. Research will be performed in three specific areas: (1) Fundamental studies of vibrational relaxation and vibrational cooling in molecular crystals, (2) Optical damage studies of crystals, polymers and glasses, and (3) Chemical reaction Kinetics in a glassy matrix.