Intense Laser-Atom Physics in Scaled Interactions

尺度相互作用中的强激光原子物理

• 批准号: 0355287
• 负责人: Louis DiMauro
• 金额: $ 49.5万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-15 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0355287&HistoricalAwards=false
• 关键词: Intense; Laser; Atom; Physics; Scaled

This project focuses on experimental investigations of the interaction of an isolated atom with an intense electromagnetic field by utilizing the wavelength scaling of the strong field interaction at frequencies much lower than the binding energy of an electron in the atom. Addressing these scaling laws with novel ionization experiments using few-cycle mid-infrared (2 micron and 4 micron) pulses is crucial since it tests the very foundations of all our understanding of the intense laser-atom interaction. A number of key studies will be enabled by this proposal and include; significantly increase the number of atomic systems capable of experiencing intense laser fields, allow systematic studies of one- and two-electron systems, examine strong field interactions for prepared states, initiate a global investigation of scaling laws and permit the first high-sensitivity experiments on atoms in large ponderomotive potentials. For the first time, the proposed novel investigations exploiting strong-field scaling laws can address unanswered questions, test fundamental concepts, explore new limits and potentially result in new discovery, all of which should add to our understanding of the intense laser-atom interaction.

该项目的重点是利用远低于原子中电子结合能的频率下的强场相互作用的波长缩放，对孤立原子与强电磁场的相互作用进行实验研究。使用少周期中红外（2微米和4微米）脉冲通过新颖的电离实验来解决这些标度定律至关重要，因为它测试了我们对强激光原子相互作用的所有理解的基础。该提案将启动许多关键研究，包括：显着增加能够经历强激光场的原子系统的数量，允许对一电子和二电子系统进行系统研究，检查准备状态的强场相互作用，启动缩放定律的全球研究，并允许对大质动力势的原子进行首次高灵敏度实验。首次提出的利用强场标度定律的新颖研究可以解决悬而未决的问题，测试基本概念，探索新的极限并可能产生新的发现，所有这些都应该增加我们对强烈的激光原子相互作用的理解。