Investigation of the Fundamentals for Collisionally Excited VUV and XUV Lasers

到目前为止，只有少数激光跃迁在非常短的波长， 真空紫外（VUV）或软X射线区域的辐射。 研究的主要目的是通过实验建立 确定XUV和VUV可行性的可控标准 激光 离子碱金属卤化物准分子的真空紫外跃迁， 潜在的高输出功率，和双激发的XUV跃迁 碱原子，有望产生低于100的相干辐射 nm正在研究中。 对于两个系统，上部激光器的泵浦 激发态亚稳稀有气体碰撞能量转移能级 原子正在研究中。 第二个目标是调查 从激发态亚稳态稀土到碰撞能量转移过程的研究 气体原子到内壳层激发碱原子和离子碱金属卤化物 分子。 此外，高激发碱原子和 正在研究碱金属卤化物分子。

To date only a few laser transitions in very short wave length of vacuum ultraviolet (VUV) or soft X-ray region have been demonstrated. The main thrust of the research is to establish experimentally controllable criteria to ascertain the feasibility of XUV and VUV lasers. VUV transitions in the ionic alkali halide excimers, with potential high output power, and XUV transitions in doubly excited alkali atoms, promising the generation of coherent radiation below 100 nm are being studied. For both systems pumping of the upper laser levels by collisional energy transfer from excited metastable rare gas atoms is being investigated. A second objective is the investigation of collisional energy transfer processes from excited metastable rare gas atoms to inner shell excited alkali atoms and ionic alkali halide molecules. Furthermore, the decay of highly excited alkali atoms and alkali halide molecules is being studied.