Multiphoton Ionization and Dissociation: The Phase-space View

多光子电离和解离：相空间视图

• 批准号: 1304741
• 负责人: Turgay Uzer
• 金额: $ 18万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1304741&HistoricalAwards=false
• 关键词: Multiphoton; Ionization; Dissociation; Phase; space

Laser-driven collisions of electrons and atoms--so-called "recollisions"-- are a key process in ultrastrong lasers. Understanding their role in various laser field configurations is potentially very rewarding for tracking the motion of giant molecules by taking their snapshots in real time. A mechanism which accounts for the rich physics in these strong laser fields is urgently needed. In particular, the impact of recolliding electrons "hitching rides" on special orbits on their way to and from the atom will be researched using mechanical models. Mechanical treatments of atoms are the perfect physics education and training tool because they allow many atomic properties to be understood pictorially and with comparatively little effort. In addition to graduate student training, undergraduate research projects on classical dynamics will be a component of this research program, as will advising mathematics and science teachers at high schools and technical colleges on pedagogical aspects of atoms. This research is often viewed as a valuable source for applications by mathematicians, and a source of new insights by chemists and therefore serves to strengthen the research infrastructure.

激光驱动的电子和原子的碰撞--所谓的“碰撞”--是超强激光的关键过程。了解它们在各种激光场结构中的作用，对于通过真实的实时拍摄大分子的快照来跟踪大分子的运动是非常有益的。迫切需要一种机制来解释这些强激光场中丰富的物理现象。特别是，将使用力学模型研究滑翔电子在往返原子的途中在特殊轨道上“搭便车”的影响。 原子的机械处理是完美的物理教育和培训工具，因为它们可以让许多原子的性质被形象地理解，并且相对较少的努力。除了研究生培训外，经典动力学的本科生研究项目将成为该研究计划的一个组成部分，并将为高中和技术学院的数学和科学教师提供原子教学方面的建议。这项研究通常被数学家视为应用的宝贵来源，也是化学家新见解的来源，因此有助于加强研究基础设施。