Cluster Dynamics Induced by Intense Laser Pulses/X-ray Parametric Amplification in Plasma Fibers

等离子体光纤中强激光脉冲/X 射线参数放大引起的团簇动力学

• 批准号: 0077835
• 负责人: Howard Milchberg
• 金额: $ 46万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-07-01 至 2005-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0077835&HistoricalAwards=false
• 关键词: Cluster; Dynamics; Induced; Intense; Laser

This is a two-part project that explores intense laser-plasma interactions and their applications. In the first part experiments will be done to investigate the use of the laser-produced plasma waveguide for nonlinear generation of coherent, short wavelength light. A great improvement over previous experiments will be the use of an elongated pulsed gas jet that will allow both injection of higher intensity pulses into the waveguide and reduced absorption of x-rays propagating out of the waveguide. The second part of the project will investigate in detail the dynamics of the interaction of intense laser pulses with clusters formed through van der Waals bonding of atoms and molecules in a supersonic gas jet expansion. These clusters are a leading candidate for the extreme ultraviolet light source needed for next generation lithography. Experiments will be performed to explore the laser-cluster interaction dynamics with femtosecond time-resolved interferometry, fast particle spectroscopy, and EUV and x-ray spectroscopy.

这是一个由两部分组成的项目，探索强烈的激光等离子体相互作用及其应用。 在第一部分中，将进行实验研究使用激光产生的等离子体波导的非线性产生的相干，短波长光。 与以前的实验相比，一个很大的改进将是使用细长的脉冲气体射流，这将允许将更高强度的脉冲注入波导中，并减少从波导中传播出来的X射线的吸收。 该项目的第二部分将详细研究强激光脉冲与在超音速气体射流膨胀中通过原子和分子的货车范德华键合形成的团簇相互作用的动力学。 这些集群是下一代光刻所需的极紫外光源的主要候选者。 实验将进行飞秒时间分辨干涉测量，快粒子光谱学，EUV和X射线光谱学探索激光团簇相互作用的动力学。