Laser-Induced Chemical Reactions and Energy Transfer

对激光诱导能量进行了理论研究 分子碰撞系统和化学反应中的传递 在几种不同的物理条件下 半经典和量子力学计算 将在以下项目中开展散射理论研究： (1)激光诱导气相双分子反应 气体原子和卤素分子，其中非共振激光器 脉冲激发货车德瓦耳斯复合体，导致形成 一种电子激发的产物 (2)操纵 超短激光脉冲来确定碰撞的结果 活动 (3)光栅附近分子的光解离， 包括预解离的特殊情况。 影响， 邻近分子和可能的激光辅助异质 催化剂也被考虑。 (4)激光诱导反应 固体-稀有气体矩阵来确定势能面， 卤素和稀有气体原子之间的反应。 这是一个基本的理论研究， 了解激光脉冲如何导致 发生特殊的化学反应。 的可能性 控制化学反应的结果，通过改变 激光的波长取决于这样的理解; 目前的研究就是为此目的而进行的。

Theoretical studies are proposed for laser-induced energy transfer in molecular collision systems and chemical reactions under several different kinds of physical conditions. Calculations involving semiclassical and quantum-mechanical scattering theory will be undertaken on the following projects: (1) Laser-induced gas-phase bimolecular reactions between a rare gas atom and a halogen molecule, in which a non-resonant laser pulse excites the van der Waals complex, leading to the formation of an electronically excited product. (2) Manipulation of ultrashort laser pulses to determine the outcome of a collision event. (3) Photodissociation of a molecule near a grating, including the particular case of predissociation. Effects due to neighboring molecules and possible laser-assisted heterogeneous catalysis are also considered. (4) Laser-induced reactions in a solid-rare gas matrix to determine potential energy surfaces and reactions between halogen and rare-gas atoms. This is a fundamental theoretical study directed towards understanding the details of how a pulse of laser light can cause particular chemical reactions to occur. The possibility of controlling the outcomes of chemical reactions by varying the wavelength of the laser light depends on such an understanding; the present studies are directed to this end.