U.S.-Federal Republic of Germany Cooperative Research on Van der Waals Complexes, Laser-stimulated Desorption and Multi-photon Ionization

美德合作研究范德华配合物、激光刺激解吸和多光子电离

• 批准号: 8722107
• 负责人: Sheng Lin
• 金额: $ 1.6万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-07-15 至 1992-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8722107&HistoricalAwards=false
• 关键词: U.S.; Federal; Republic; Germany; Cooperative

This award supports Professor Sheng Hsien Lin of Arizona State University for several short term visits to collaborate with Prof. E. W. Schlag of the Technical University of Munich. They are studying the mechanisms of laser-stimulated desorption or vaporization of adsorbed molecules from solid surfaces, using both infrared and ultraviolet-visible lasers. They plan to continue their investigation of spectral shifts and electronic relaxation of van der Waals complexes. In addition, they will study the spectroscopic properties and dynamical processes of benzene and other dimers and the photoisomerization of an aromatic molecule embedded in a cluster as a function of cluster size. They will also carry out a theoretical study of photoionization threshold spectroscopy on van der Waals clusters to show that this leads to more accurate determination of ionization potential and provides information on the structure and vibrational frequencies of the cluster. Professor Lin is carrying out state of the art theoretical research on problems of great current interest in chemistry - studies of laser-stimulated vaporization of molecules from surfaces and of the spectral properties of van der Waals complexes. Such work requires input from experiments. Collaboration with Dr. Schlag and his outstanding group of experimentalists provides this very necessary interaction. Their prior collaboration has produced a number of significant contributions. Current plans for further collaboration promise valuable new insights into the processes that take place in a molecule after it has absorbed energy from light.

该奖项支持亚利桑那州立大学的林圣贤教授 大学进行了几次短期访问，与 E. W.慕尼黑工业大学的施拉格说。 他们是 研究激光激发脱附的机理， 从固体表面吸附的分子的蒸发，使用 红外和紫外可见激光。 他们计划继续 他们的光谱位移和电子弛豫的研究， 货车范德瓦耳斯复形。 此外，他们还将研究 苯的光谱性质和动力学过程， 其它二聚体和芳香分子的光异构化 作为簇大小的函数嵌入在簇中。 他们还将 进行光电离阈值的理论研究 光谱上的货车范德华集群，以表明这导致 更准确地测定电离电位，并提供 的结构和振动频率的信息， 集群 林教授正在进行最先进的理论研究 关于化学中当前最感兴趣的问题的研究 激光刺激分子从表面蒸发， 货车德瓦耳斯配合物的光谱性质。 这项工作需要 实验输入。 与施拉格博士和他的 一群优秀的实验家提供了这一非常必要的 互动 他们之前的合作已经产生了一些 重大贡献。 目前进一步合作的计划 承诺有价值的新见解的过程中发生， 一个分子吸收了光的能量之后。