Precision Measurements of Photoelectrons and Radiation From Atoms in Ultrastrong Fields

超强场中原子光电子和辐射的精确测量

• 批准号: 0757953
• 负责人: Barry Walker
• 金额: $ 36.28万
• 依托单位: University of Delaware
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-08-01 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0757953&HistoricalAwards=false
• 关键词: Precision; Measurements; Photoelectrons; Radiation; Atoms

This project involves a series of precision measurements of individual atoms interacting with ultrastrong laser pulses. In these laser pulses, the electric field is much stronger than the electric fields holding the atom together. The studies will result in a set of detailed, high-dynamic range measurements of the field-atom interaction. The science has direct bearing on topics fundamental to ongoing experiment and theory efforts in atomic, molecular, and optical physics including multi-electron phenomena, magnetic field-atom interactions, relativistic dynamics, and ultrafast X-ray radiation.The frontiers of ultra-intense laser science stretch across plasma physics, fusion science, atomic physics, optical science, laser technology, and attosecond X-ray radiation. Practical future applications of the research include providing measurements for processes within laser fusion and laser based accelerators. These basic science measurements also provide a footing for future radiation source development and applications. Radiation from ultrastrong fields has characteristics not possessed by traditional X-ray sources. Such new X-ray sources are needed to visualize reaction pathways and dynamics at the molecular and electronic level not observable with conventional techniques. Teaching and training in modern optics is enhanced by developing undergraduate laboratory and lecture demonstrations. These new resources include holography, diffractive and micro-optics for students in engineering and physical sciences.

该项目涉及一系列与Ultrastrong激光脉冲相互作用的单个原子的精确测量。 在这些激光脉冲中，电场比将原子固定在一起的电场强得多。 这些研究将导致一系列详细的，高动力的范围测量值。该科学直接取决于原子，分子和光学物理学的持续实验和理论努力的主题，包括多电子现象，磁场 - 原子相互作用，相对论动态以及超快的X射线辐射。辐射。研究的实际应用包括在激光融合和基于激光的加速器中为过程提供测量。这些基础科学测量还为未来的辐射源开发和应用提供了基础。 Ultrastrong田地的辐射具有传统X射线源不具有的特征。需要这种新的X射线源来可视化反应途径和动力学在分子和电子水平上无法使用常规技术观察到的。通过开发本科实验室和演示演示，可以增强现代光学的教学和培训。这些新资源包括针对工程和物理科学专业的学生的全息，衍射和微观访问。