Purchase of an Ultrafast Laser System for Materials Chemistry

购买用于材料化学的超快激光系统

• 批准号: 0840055
• 负责人: Eric Chronister
• 金额: $ 22.93万
• 依托单位: University of California-Riverside
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-01 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0840055&HistoricalAwards=false
• 关键词: Purchase; Ultrafast; Laser; System; Materials

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).With support from the Chemistry Research Instrumentation and Facilities: Multiuser program (CRIF:MU), the Department of Chemistry at the University of California - Riverside will acquire an amplified femtosecond laser system with broad wavelength coverage -- from the ultraviolet (270 nm) to the near infrared (2.6 micron). The laser system will be used by researchers at Riverside to study the time-resolved spectroscopy of interesting chemical and materials systems. Some the topics to be studied include: (1) the time-resolved spectroscopy of neutral radical conductors; (2) the charge dynamics in nanostructured semiconductors; (3) the properties of molecular materials under high pressure; (4) the diffusion and reactivity of hot adsorbates on metal surfaces and (5) exciton dynamics in organic semiconductors. The laser system will be used by large numbers of undergraduate and graduate students, both in instructional settings as well as in research. Significant numbers of the student users at this Hispanic Serving Institution are members of groups traditionally underrepresented in the sciences.Ultrafast laser systems, like the one purchased under this award, allow chemists to probe the dynamics of chemical and physical processes at precisely the time scales for important chemical and physical processes -- from the making and breaking of chemical bonds, to the vibrations of individual atoms and the relaxation of excited electrons. The ability of chemists to observe these processes allows them to develop a better understanding of how molecules and materials work. This kind of knowledge can be used to make new or better materials or devices.

该奖项由2009年美国复苏和再投资法案(公共法律111-5)资助。在化学研究仪器和设施：多用户计划(CRIF：MU)的支持下，加州大学河滨分校化学系将获得一个波长覆盖范围从紫外线(270 Nm)到近红外(2.6微米)的放大飞秒激光系统。该激光系统将被河滨大学的研究人员用来研究有趣的化学和材料系统的时间分辨光谱。需要研究的课题包括：(1)中性自由基导体的时间分辨光谱；(2)纳米半导体中的电荷动力学；(3)分子材料在高压下的性质；(4)热吸附在金属表面的扩散和反应；(5)有机半导体中的激子动力学。激光系统将被大量的本科生和研究生使用，无论是在教学环境中还是在研究中。这个拉美裔服务机构的相当多的学生用户是传统上在科学中代表较少的群体的成员。超快激光系统，如根据本奖项购买的系统，允许化学家在重要的化学和物理过程的时间尺度上精确地探索化学和物理过程的动力学--从化学键的形成和断裂，到单个原子的振动和激发的电子的松弛。化学家观察这些过程的能力使他们能够更好地理解分子和材料的工作原理。这种知识可以用来制造新的或更好的材料或设备。