Macroscopic Coherence and Its Applications to Spectroscopy (Physics)

宏观相干性及其在光谱学中的应用（物理）

• 批准号: 8713169
• 负责人: Thomas Mossberg
• 金额: $ 12.38万
• 依托单位: University of Oregon Eugene
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-01 至 1989-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8713169&HistoricalAwards=false
• 关键词: Macroscopic; Coherence; Its; Applications; Spectroscopy

The objective of this research is to apply the techniques of coherent transient physics to the study of collisional and other relaxational processes in gases. Coherent transient techniques offer unique and largely unexploited experimental opportunities to separately study the velocity-changing, phase- changing, state-changing, and depolarizing aspects of collisions in a manner which is Doppler-free, independent of laser linewidth, and possessed of such intrinsically large signals that even sub-natural width collisional broadening effects are observable. In addition to contributing to the basic understanding of collision processes, coherent transient collision studies will undoubtedly be useful in the understanding of gas-phase laser operation, in the interpretation of collisional lineshapes observed in astrophysics, and in the development of plasma diagnostics.

本研究的目的是应用这些技术 相干瞬态物理学的研究碰撞和 气体中的其他弛豫过程。 相干瞬态 技术提供了独特的和基本上未开发的实验 有机会分别研究速度变化，相位， 改变、状态改变和去极化方面 以无多普勒的方式碰撞，独立于 激光线宽，并拥有这种固有的大 甚至亚自然宽度的碰撞增宽 效果是可以观察到的。 除了对《公约》作出贡献外， 基本了解碰撞过程，相干瞬态 碰撞研究无疑将有助于 了解气相激光器的操作，在 碰撞线型的解释 天体物理学和等离子体诊断的发展。