激光的化学应用研究进展(二)——激光光谱的应用

Progress in research of chemical applications of lasers(Ⅱ) Applications of laser spectroscopy

本文叙述了激光在光谱学中的应用,叙述了利用激光和物质分于相互作用的物理化学效应,进而研究物质分子的结构、状态及其运动变化的微观图景和动力学规律。并予期利用激光有可能将相当大量的各种物质粒子激发到指定的量子状态,也可以根据物质粒子本身在其原子组成、同位素成份、定向结构和核激发状态方面的微小差异,而将混合物中某些特定的分子有选择地进行激发。

Applications of lasers to spectroscopy and physicochemical effects of the interaction of laser beam with material molecules are described. Structures and states of material molecules and the microscopic pictures and the kinetic rules of the changes in their movements are studied subsequently. It is expected that with the use of laser relatively large quantities of various material particles may be excited to the appointed quantum states while certain molecules in a mixture may be selectively excited by making use of the slight difference in atomic compositions, isotope species, directional structures, and nuclear excited states of the material molecules themselves.