RUI: Photoionization and Photorecombination Processes in Atomic Theory

RUI：原子理论中的光电离和光复合过程

• 批准号: 0099381
• 负责人: Stanley Haan
• 金额: $ 9万
• 依托单位: Calvin University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-05-15 至 2004-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0099381&HistoricalAwards=false
• 关键词: RUI; Photoionization; Photorecombination; Processes; Atomic

The primary topic is the interaction of two-electron atoms with intense laser fields, which leads to detachment of the electrons. An important mechanism is recollision, in which one electron is removed from the atom and then oscillates in the laser field, recolliding with the residual atom one or more times. It is found that double collisions can be more effective than single collisions in removing the remaining electron. The plan is to use models of the two electron atom in analytic and numerical studies of these mechanisms of double ionization. It is also planned to study photorecombination, in which electrons recombine with atomic ions in the presence of the intense laser fields. Undergraduate students will contribute to the project in computer programming and analysis, but also in explaining the physics of the double-ionization process.

主要主题是两电子原子与强烈激光场的相互作用，从而导致电子脱离。 一个重要的机制是回忆，其中将一个电子从原子中去除，然后在激光场中振荡，以一次或多次的残留原子回忆。 发现双碰撞在去除其余电子时可能比单碰撞更有效。 该计划是在这些双电离机制的分析和数值研究中使用两个电子原子的模型。 还计划研究摄影分解，其中电子在强烈的激光场存在下与原子离子重组。 本科生将在计算机编程和分析中为项目做出贡献，同时也解释了双离子化过程的物理学。