Linear and Nonlinear Resonance Raman Studies of Photo- dissociation

光解离的线性和非线性共振拉曼研究

• 批准号: 8918418
• 负责人: Lawrence Ziegler
• 金额: --
• 依托单位: Northeastern University
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-11-15 至 1992-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8918418&HistoricalAwards=false
• 关键词: Linear; Nonlinear; Resonance; Raman; Studies

With support from the Experimental Physical Chemistry Program, Professor Ziegler is developing and using novel Raman spectroscopic techniques to investigate the dynamics of photodissociation processes in small polyatomic molecules at a resolution sufficient to examine individual rotational-vibrational levels. Ziegler's experimental and theoretical work is expanding our detailed understanding of the photodissociation process and its variation with the energy and quantum numbers of the initially prepared state. Previously developed rotational resonance Raman techniques are being used to measure rovibrational quantum specific lifetimes of short-lived (20 femtoseconds to 5 picoseconds) quasi-bound excited state levels. Resonance hyper-Raman is extending the work to dissociative molecular excited states in the vuv accessible via two-photon processes with near-uv photons. Planned work also includes the use of resonant Coherent Anti-Stokes Raman Spectroscopy (CARS) to achieve greater rotational quantum resolution and allow the study of larger molecules.

在实验物理化学计划的支持下， 齐格勒教授正在开发和使用新型的拉曼 光谱技术来研究的动力学 多原子小分子的光解离过程 分辨率足以检查个人 旋转振动能级 齐格勒的实验和 理论工作正在扩展我们对 光解离过程及其随能量的变化， 初始准备态的量子数。 先前开发的旋转共振拉曼技术是 用来测量振转量子比寿命 短寿命（20飞秒至5皮秒）准束缚 激发态能级 共振超拉曼技术正在扩展 真空紫外下离解分子激发态的研究 可通过具有近紫外光子的双光子过程获得。 计划中的工作还包括使用共振相干 反斯托克斯拉曼光谱（汽车），以实现更大的 旋转量子分辨率，并允许研究更大的 分子。