Acquisition of a Femtosecond/Picosecond Laser for Ultrafast Spectroscopic Probes of the Structure and Excited State Dynamics of Molecular Systems

获取飞秒/皮秒激光器用于分子系统结构和激发态动力学的超快光谱探针

• 批准号: 0216371
• 负责人: David Modarelli
• 金额: $ 56.95万
• 依托单位: University of Akron
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-15 至 2006-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0216371&HistoricalAwards=false
• 关键词: Acquisition; Femtosecond; Picosecond; Laser; Ultrafast

With this award from the Major Research Instrumentation (MRI) Program, the Center for Laser and Optical Spectroscopy at the University of Akron will acquire a femtosecond/picosecond laser for ultrafast spectroscopic probes of the structure and excited state dynamics of molecular systems. This equipment will enhance research in the following areas: 1) time-resolved optical spectroscopy of novel nanoscale, porphyrin-containing, dendritic photosynthetic mimics; 2) equilibrium geometries and excited-state dynamics of aromatic clusters; 3) real-time measurements of intramolecular vibration-energy redistribution (IVR) in OH-containing molecules; and 4) time-resolved optical spectroscopy of unusual porphyrins.A femtosecond/picosecond laser provides ultrafast pulses of coherent visible or infrared light, which enables researchers to obtain important information about fast occurring chemical reactions. Its use may enable breakthroughs in our understanding of the properties of reactive and nonreactive molecules. This laser system will be available to researchers from a number of neighboring universities and colleges in Ohio.

通过主要研究仪器（MRI）计划的这一奖项，阿克伦大学激光和光谱学中心将获得飞秒/皮秒激光器，用于分子系统结构和激发态动力学的超快光谱探针。 该设备将加强以下领域的研究：1）新型纳米级含卟啉树枝状光合模拟物的时间分辨光谱学; 2）芳香族团簇的平衡几何结构和激发态动力学; 3）含OH分子中分子内振动能量再分布的实时测量;飞秒/皮秒激光器提供相干可见光或红外光的超快脉冲，这使研究人员能够获得关于快速发生的化学反应的重要信息。 它的使用可能使我们对反应性和非反应性分子性质的理解取得突破。 这个激光系统将提供给来自俄亥俄州附近一些大学和学院的研究人员。