Investigation of the Fundamentals for Collisionally Excited VUV and XUV Lasers

碰撞激发 VUV 和 XUV 激光器的基础研究

• 批准号: 8501433
• 负责人: Roland Sauerbrey
• 金额: --
• 依托单位: William Marsh Rice University
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1985
• 资助国家: 美国
• 起止时间: 1985-08-15 至 1988-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8501433&HistoricalAwards=false
• 关键词: Investigation; Fundamentals; Collisionally; Excited; VUV

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.

到目前为止，只有极短波长的真空紫外区或软X射线区的激光跃迁被证实。这项研究的主要目的是建立实验可控的标准，以确定XUV和VUV激光器的可行性。研究了具有潜在高输出功率的离子碱卤化物准分子中的VUV跃迁和双激发碱原子中的XUV跃迁，有望产生100 nm以下的相干辐射。在这两个系统中，都在研究通过激发的亚稳稀有气体原子的碰撞能量转移来泵浦高激光能级。第二个目标是研究从激发的亚稳态稀有气体原子到内层激发的碱原子和离子碱卤化物分子的碰撞能量转移过程。此外，还在研究高激发态碱原子和碱卤化物分子的衰变。