Vibrational and Chemical Dynamics of Crystalline and Amorphous Solids

该项目的目标是了解固体中振动激发的分子如何耗散其多余的机械能，以及这种耗散过程如何与固体中的化学反应速率相关。利用时间相关光谱技术对这些过程进行了实验研究，特别是在超快时域。研究将在三个特定领域进行：(1)分子晶体振动弛豫和振动冷却的基础研究；(2)晶体、聚合物和玻璃的光学损伤研究；(3)玻璃基质中的化学反应动力学。

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.