Doubly Excited States (Physics)

双激发态（物理）

• 批准号: 9001126
• 负责人: Thomas Gallagher
• 金额: $ 29.79万
• 依托单位: University of Virginia Main Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-05-15 至 1994-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9001126&HistoricalAwards=false
• 关键词: Doubly; Excited; States; Physics

Experimental investigations of doubly excited states of the two-valence-electron atom Ba will be carried out. First, such states with highly correlated motions will be investigated, by observing correlations in energy levels, oscillator strengths, and decay mechanisms. Second, a high power picosecond laser will be used to excite doubly excited states to determine the extent to which excitation occurs in neutral Ba before it decays into an ion and an electron, and to observe the interplay between intermediate and final autoionizing resonances on the process.

对双价电子Ba原子的双激发态进行了实验研究。首先，将通过观察能级、振子强度和衰变机制的相关性来研究这些具有高度相关运动的状态。其次，使用高功率皮秒激光激发双激发态，以确定中性Ba在衰变为离子和电子之前发生的激发程度，并观察中间和最终自电离共振之间的相互作用。