Spectroscopy of Diatomic Molecules at Long Range

实验物理化学计划支持Stwalley教授和Lyyra博士在非常远的范围内合作进行双原子分子的光谱研究。这些研究非常适合于研究光解离(断键)和缔合电离(通过电子损失形成键)等基本过程。正在获得关于长距离相互作用对碰撞动力学的影响的信息。激光正被用来远距离制备碱性双原子分子，并探测随后的解离或电离过程。受激辐射解离是一种将光学-光学双共振光谱与受激辐射泵浦相结合的新技术，用于精确控制钠二聚体的长程激发态参数，用于研究大核间距离的非绝热混合。

The Experimental Physical Chemistry Program supports Professor Stwalley and Dr. Lyyra in a collaborative spectroscopic investigation of diatomic molecules at very long range. These studies are well suited for studying such fundamental processes as photodissociation (bond-breaking) and associative ionization (bond-forming through electron loss). Information is being obtained on the effects of long range interactions on collision dynamics. Lasers are being used to prepare alkali diatomic molecules at long range and to probe the subsequent dissociation or ionization processes. Stimulated radiative dissociation, a new technique combining optical-optical double resonance spectroscopy with stimulated emission pumping, is being developed to precisely control the parameters of long range excited states of sodium dimers for studies of nonadiabatic state mixing at large internuclear distances.