Acquisition of an Ultrahigh-Resolution Vacuum Ultraviolet Laser System

凭借化学研究仪器和设施（CRIF）计划的这一奖项，位于戴维斯的加州大学化学系将获得超高分辨率真空紫外激光系统。这一设备将加强以下领域的研究：（a）简单多原子分子，包括某些氨基酸的高分辨率双色红外真空紫外和真空紫外红外光电离和脉冲场电离光电子研究;（B）研究二硫化碳和二氧化碳的离解动力学，并确定产物分支比; c）发展用于表征纳米材料中碳和硅的高分辨率真空紫外显微技术; d）自由基动力学和光谱学的真空紫外共振拉曼光谱研究; e）研究被吸附分子的表面结构及其活性; f）分析空气中的污染物、气溶胶和生物分子。这个多用户激光设施的存在不仅将促进这些团体之间的未来合作项目，而且还为化学系的研究生和博士后学生提供了一个积极的学习环境，以熟悉物理，分析，大气和生物物理化学的各种前沿研究领域。 像这样的综合超高分辨率真空紫外激光系统目前在美国或加拿大还不存在。 该激光系统的应用代表了许多重要研究领域的前沿，例如离子光谱学、反应中间体的热化学、分析和大气采样的质谱法以及材料研究的显微镜。

With this award from the Chemistry Research Instrumentation and Facilities (CRIF) Program, the Department of Chemistry at the University of California in Davis will acquire an ultrahigh-resolution vacuum ultraviolet laser system. This equipment will enhance research in the following areas: a) high-resolution two-color IR-VUV and VUV-IR photoionization and pulsed-field-ionization-photoelectron studies of simple polyatomic molecules, including selected amino acids; b) studies of the dissociation dynamics of carbon disulfide and carbon dioxide and to determine product branching ratios; c) development of high resolution VUV microscopic techniques for characterization of carbon and silicon in nanomaterials; d) VUV resonance Raman spectroscopic studies of the dynamics and spectroscopy of radicals; e) studies on the surface structures of absorbed molecules and their activities; and f) analysis of airborne pollutants, aerosols, and biomolecules. The existence of this multi-user laser facility will not only induce future cooperative projects between these groups, but also provide a positive learning environment for graduate and postdoctoral students in the Chemistry Department to familiarize with various frontier research areas in physical, analytical, atmospheric and biophysical chemistry. A comprehensive ultrahigh-resolution VUV laser system such as this does not currently exist in the US or Canada. The application of this laser system represents a frontier in many important research fields, such as spectroscopy of ions, thermochemistry of reactive intermediates, mass spectrometry for analytical and atmospheric sampling, and microscopy for materials studies.