Photothermal and Photochemical Dynamics of Molecular and Polymeric Solids Investigated by Ultrafast Spectroscopy

这项更新建议旨在了解分子和聚合物固体在发生光化学反应或光热反应时的行为，重点放在最初几皮秒内发生的变化。需要研究的三个不同领域是：(1)固体中的超快机械能量传递过程；(2)纳米尺度上的热传导和过热聚合物中的共形重排；(3)非晶态(玻璃和聚合物)中的固态化学反应，以及实用的光致抗蚀剂体系。

This renewal proposal is aimed at understanding the behavior of molecular and polymeric solids when photo-chemical or photo-thermal reactions occur, with a focus on changes that occur during the first few picoseconds. Three distinct areas to be investigated are: (1) ultrafast mechanical energy transfer processes in solids; (2) the study of thermal conduction over nanometer length scales, and conformal rearrangements in superheated polymers; (3) solid state chemical reactions in the amorphous solid state (glasses and polymers), and practical photoresist systems.