US-Federal Republic of Germany Cooperation in Pulsed Laser Studies

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博士在化学物理研究方面进行合作。他们正在研究脉冲紫外光与分子的相互作用。他们将进行的一系列实验包括激光制备单个量子态，并研究它们随后与分子和/或与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。第二类研究更实用，涉及马克斯·普朗克研究所开发的一种新方法，用于激光分析涉及激光诱导的预解离荧光(LIPF)的燃烧。要建立一套针对大量物种的定量分析系统，还有很多工作要做。这将是共同努力的主题。通过与能力超强且装备精良的德国合作者的直接合作，这一合作提供了在底特律地区加强汽车燃烧诊断的可能性。激光为应用于化学诊断提供了许多理想的特征。它们具有高强度、窄带宽、快脉冲和相干性。通过反射镜和透镜可以很容易地操纵和聚焦光线。可以容易地利用这些所需特性的适当组合。LIPF提供的特殊优势是，它可以在大气和更高的压力下定量和简单地使用，例如，与大气火焰或内燃存在的那些压力。当探测器和计算机技术相结合应用于燃烧时，这种技术尤其有希望。例如，这些措施应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、简单的技术适用于各种商业工艺，包括低温和高温湍流环境。

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.