Acquisition of an Ultrahigh-Resolution Vacuum Ultraviolet Laser System
Acquisition of an Ultrahigh-Resolution Vacuum Ultraviolet Laser System
批准号:
0342829
负责人:
William Jackson
金额:
$39.22万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2004
资助国家:
美国
项目状态:
已结题
起止时间:
2004-02-15 至 2007-01-31
中文摘要
利用化学研究仪器和设施计划(CRIF)的这一奖项,加州大学戴维斯分校化学系将获得一套超高分辨率真空紫外激光系统。这台设备将加强下列领域的研究:a)高分辨率双色IR-VUV和VUV-IR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解离动力学并确定产品支化比;c)开发高分辨率VUV显微技术用于表征纳米材料中的碳和硅;d)VUV共振拉曼光谱研究自由基的动力学和光谱;e)研究吸附分子的表面结构及其活性;f)分析空气中污染物、气溶胶和生物分子。这种多用户激光设备的存在不仅将引发这些小组之间未来的合作项目,而且还将为化学系的研究生和博士后提供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个前沿研究领域。像这样的综合超高分辨率VUV激光系统目前在美国和加拿大还不存在。该激光系统的应用代表了许多重要研究领域的前沿,如离子光谱、反应中间体的热化学、用于分析和大气采样的质谱学以及用于材料研究的显微镜。
英文摘要
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.
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依托单位:
Chemistry Career Planning Workshop For Underrepresented Minority Students, University of California, Davis, August 7-9, 1993
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