Multiphoton Ionization of Atoms by Intense Fields (Physics)

强场对原子的多光子电离（物理学）

• 批准号: 8713196
• 负责人: Robin Shakeshaft
• 金额: $ 22.54万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-10-15 至 1991-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8713196&HistoricalAwards=false
• 关键词: Multiphoton; Ionization; Atoms; Intense; Fields

The objective of this grant is the formulation of a tractable theory for treating ionization of atoms by laser fields too intense to be regarded as a perturbation. The calculation of ionization rates to specific channels poses a challenging problem. The divergent integrals inherent in dealing with transitions through the continuum will be handled by working in the velocity gauge and algebraically manipulating the cancellation of divergences. Some "nonperturbative" methods are proposed. Other problems associated with multiphoton ionization of atoms will also be explored.

这笔赠款的目的是制定一项 处理激光原子电离的易处理理论 场太强以至于不能被视为扰动。 的 计算特定通道的电离率， 具有挑战性的问题。 中固有的发散积分 处理连续体中的过渡将被处理 通过速度计和代数运算 操纵分歧的消除。 一些 提出了“非微扰”方法。 其他问题 与原子的多光子电离相关的， 探讨了