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，我们将进行实验来研究激光产生的等离子体波导用于非线性产生相干短波长光的用途。 与之前的实验相比，一个巨大的改进是使用细长的脉冲气体射流，它既可以将更高强度的脉冲注入波导，又可以减少从波导传播的 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超音速气体射流膨胀中原子和分子的范德华键形成的团簇相互作用的动力学。 这些簇是下一代光刻所需的极紫外光源的主要候选者。 将进行实验，利用飞秒时间分辨干涉仪、快粒子光谱、EUV 和 X 射线光谱来探索激光-团簇相互作用动力学。