Optical Control of Condensed Phase Reaction Dynamics

凝聚相反应动力学的光学控制

• 批准号: 0718219
• 负责人: Roseanne Sension
• 金额: $ 46.2万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-15 至 2011-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0718219&HistoricalAwards=false
• 关键词: Optical; Control; Condensed; Phase; Reaction

In this award, funded by the Experimental Physical Chemistry Program of the Division of Chemistry, Professor Roseanne Sension of the University of Michigan along with her post-doctoral fellows and graduate students plan to perform experiments aimed at influencing both condensed phase molecular dynamics & chemical reactivity along with the identification of effective pulse shapes through learning algorithm approaches. The overarching goal of these studies is focused on linking sophisticated observation of reaction dynamics with the ability to control chemical reactions either directly or indirectly. Five specific systems are proposed for study: 1) Control of Reactive Excited State Branching in Cis-Stilbene, 2) Control of Photodissociation Channels in Solution Phase, 3) Control of Excited State Branching in Pyrimidine DNA Bases, 4) 1,3-Cyclohexadiene Ring-Opening Reaction, and 5) The Pro-Vitamin D Ring-Opening Reaction. Techniques such as ultraviolet (UV) pulse shaping, excited state measurements, theoretical calculations, and multi-photon laser excitation will be employed.The nature of this work is at the forefront of modern optical techniques and exposes students to state-of-the-art research in chemical physics and optical physics. Students and other research associates will have access to advanced laser pulse generation techniques. Integration with education will include augmenting the computational chemistry curriculum to include modeling and simulation of the chemical dynamics observed in ultrafast laser experiments.

在该奖项中，由化学系实验物理化学项目资助，密歇根大学的 Roseanne Sension 教授及其博士后研究员和研究生计划进行旨在影响凝聚相分子动力学和化学反应性以及通过学习算法方法识别有效脉冲形状的实验。这些研究的总体目标集中于将对反应动力学的复杂观察与直接或间接控制化学反应的能力联系起来。 建议研究五个具体系统：1) 顺式二苯乙烯中反应性激发态分支的控制，2) 溶液相光解离通道的控制，3) 嘧啶 DNA 碱基中激发态分支的控制，4) 1,3-环己二烯开环反应，以及 5) 维生素 D 原开环反应。 将采用紫外线 (UV) 脉冲整形、激发态测量、理论计算和多光子激光激发等技术。这项工作的性质处于现代光学技术的前沿，让学生接触到化学物理和光学物理领域的最先进研究。 学生和其他研究助理将有机会使用先进的激光脉冲生成技术。 与教育的整合将包括增强计算化学课程，包括对超快激光实验中观察到的化学动力学进行建模和模拟。