Multiphoton Ionization and Dissociation: The Phase-space View

激光驱动的电子和原子碰撞--即所谓的“再碰撞”--是超强激光的关键过程。了解它们在各种激光场配置中的作用，对于通过实时拍摄巨型分子的快照来跟踪它们的运动可能是非常有意义的。迫切需要一种机制来解释这些强激光领域中丰富的物理现象。特别是，将使用力学模型研究电子在往返于原子的特殊轨道上重新碰撞的“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，因为它们允许以图形化的方式了解原子的许多性质，并且相对较少的努力。除了研究生培训，经典动力学的本科生研究项目将是这个研究计划的一个组成部分，还将就原子的教学方面向高中和技术大学的数学和科学教师提供建议。这项研究经常被视为数学家应用的宝贵来源，也是化学家新见解的来源，因此有助于加强研究基础设施。

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.