Ultrafast Spectroscopy and Other Applications of Lasers in Chemistry

在这个实验物理化学项目中， Hochstrasser将研究超快 飞秒激光凝聚相分子动力学 脉冲以获得可见光和红外光谱。 能源 在液体中受到碰撞的分子的流动 能量从分子中流出 环境是这些实验的主题。 三个领域 研究的重点是多烯的扭转弛豫，质子转移 反应，以及反应性和非反应性振动弛豫。 在液体中研究了碰撞诱导过程 碰撞本身的时间尺度上的相位。 %%% 能量激发态的相变研究 从一个分子同分异构体 配置到另一个将大大扩展我们的 了解复杂分子如何经历内部 以及它们是如何被周围的 溶剂后

In this project in the Experimental Physical Chemistry Program of the Chemistry Division, Hochstrasser will study ultrafast molecular dynamics in condensed phases using femtosecond laser pulses to obtain spectra in the visible and infrared. Energy flow in molecules which are subject to collisions in a liquid and the flow of the energy out of the molecule into the surroundings are the subject of these experiments. Three areas of study are torsional relaxation of polyenes, proton transfer reactions, and reactive and nonreactive vibrational relaxation. The collisionally induced processes are examined in the liquid phase on the time scale of collisions themselves. %%% The study of the transformation of energetically excited molecules in condensed phases from one molecular isomeric configuration to another will significantly expand our knowledge of how a complex molecule undergoes internal rearrangements and how these are mediated by a surrounding solvent.