Intramolecular Energy Flow in Excited Electronic States

Edward C. Lim得到了The 物理化学计划，研究分子内的能量流 处于电子激发态。 林教授使用分子 用束流和激光激发技术制备分子 处于非常特定的激发态的系统， 作为时间的函数。 这些研究的动机是 找到一条通往特定模式或特定键化学的途径 通过控制吸收的激光辐射的定位。 林教授采用的实验方法利用了 时间分辨光电离和激光诱导荧光 种子分子束 皮秒和纳秒激光器是 用于通过频率探测结构和动态特性- 和时域实验。 这些实验技术是 被用来探索各种有趣的化学物质 系统包括：芳族羰基化合物、卤代蒽 和货车范德华分子。

Professor Edward C. Lim is supported by a grant from The Physical Chemistry Program to study intramolecular energy flow in excited electronic states. Professor Lim uses molecular beam and laser excitation techniques to prepare molecular systems in very specific excited states which are then probed as a function of time. These studies are motivated by a desire to find a route to mode-specific or bond-specific chemistry through controlled localization of absorbed laser radiation. The experimental approach employed by Professor Lim utilizes time-resolved photoionization and laser-induced fluorescence in seeded molecular beams. Picosecond and nanosecond lasers are used to probe structural and dynamic properties via frequency- and time-domain experiments. These experimental techniques are being used to explore a large variety of interesting chemical systems including: aromatic carbonyls, halogenated anthracenes and van der Waals molecules.