US-Federal Republic of Germany Cooperation in Pulsed Laser Studies

美德意志联邦共和国脉冲激光研究合作

• 批准号: 8922474
• 负责人: Erhard Rothe
• 金额: $ 1.38万
• 依托单位: Wayne State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-08-01 至 1994-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8922474&HistoricalAwards=false
• 关键词: US; Federal; Republic; Germany; Cooperation

This award supports Dr. Erhard W. Rothe of Wayne State University for several trips to Goettingen, Germany, to collaborate in chemical physics research with Dr. Peter Anderson of the Max Planck Institute for Flow Research. They are studying interactions of pulsed ultraviolet laser light with molecules. One set of experiments they will carry out involves laser preparation of single quantum states and study of their subsequent interactions with molecules and/or with other laser light. This requires the use of three lasers on the same experiment. The second type of research is more applied and involves a new method, developed at the Max Planck Institute, for laser analysis of combustion involving laser.induced predissociative fluorescence (LIPF). Much remains to be done to make a quantitative analysis system for a large number of species. This will be the subject of joint effort. This collaboration offers the possibility of enhancing automotive combustion diagnostics in the Detroit area through direct experience with highly competent and well equipped German collaborators. Lasers offer many desirable features for application to chemical diagnostics. They have high intensity, narrow band.width, fast pulses and coherence. The light is easily manipulated and focussed with mirrors and lenses. Appropriate combinations of such desirable properties can be readily exploited. LIPF offer the particular advantage that it can be quantitatively and simply used at atmospheric and higher pressures, such as those that exist, for example, with atmospheric flames or with internal combustion. Such techniques are particularly promising when combined detector and computer technologies are applied to combustion. These should, for example, lead to optimization of fuels and minimization of pollutants by appropriate control and feedback technology. Such quick, accurate and simple techniques are applicable to a variety of commercial processes, including low and high temperature turbulent environments.

该奖项支持韦恩州立大学的 Erhard W. Rothe 博士多次前往德国哥廷根，与马克斯普朗克流动研究所的 Peter Anderson 博士合作进行化学物理研究。 他们正在研究脉冲紫外激光与分子的相互作用。 他们将进行的一组实验涉及单量子态的激光制备，并研究它们随后与分子和/或其他激光的相互作用。 这需要在同一个实验中使用三个激光器。 第二种类型的研究更具应用性，涉及马克斯·普朗克研究所开发的一种新方法，用于激光诱导预解离荧光 (LIPF) 燃烧分析。 要为大量物种建立定量分析系统还有很多工作要做。 这将是共同努力的主题。 此次合作通过与高素质、装备精良的德国合作者的直接经验，提供了增强底特律地区汽车燃烧诊断的可能性。 激光器为化学诊断应用提供了许多理想的特性。 它们具有高强度、窄带宽、快脉冲和相干性。 光线可以通过镜子和透镜轻松控制和聚焦。 可以容易地利用这些所需特性的适当组合。 LIPF 具有特殊的优点，即它可以在大气压力和更高压力下定量且简单地使用，例如大气火焰或内燃中存在的压力。 当组合检测器和计算机技术应用于燃烧时，此类技术特别有前途。 例如，这些应该通过适当的控制和反馈技术来优化燃料和最大限度地减少污染物。 这种快速、准确和简单的技术适用于各种商业过程，包括低温和高温湍流环境。