Engineering Research Equipment Grant: Excimer Laser

正在购买一台准分子激光器，用于调查 过渡复合物的分解，如发生在 光离解、化学反应、非弹性碰撞或气体 从表面解吸。 该仪器提供的脉冲 线性偏振的紫外线， 内冷分子 用第二种方法分析产品， 激光，通过激光诱导荧光，用于特定的电子， 振动和转动状态。 测定分子 比对可以产生关于 反应. 例如，一个未成对的电子叶往往优先 指向一个断裂键的方向。 实验增加了一个新的 对这些过程的理解。

An excimer laser is being purchased to be used to investigate the breakup of transition complexes such as those occurring in photodissociation, chemical reactions, inelastic collisions, or gas desorption from a surface. This instrument provides pulses of linearly-polarized ultra-violet light that are used to dissociate internally-cold molecules. The products are analyzed with a second laser, via laser-induced fluorescence, for specific electronic, vibrational, and rotational states. The determination of molecular alignments can yield detailed information about the dynamics of the reactions. For example, an unpaired electron lobe often preferentially points in the direction of a broken bond. The experiments add a new dimension of understanding to these processes.