Purchase of a Picosecond Laser System

购买皮秒激光系统

• 批准号: 9974842
• 负责人: A. Richard Chamberlin
• 金额: $ 17.69万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-15 至 2002-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9974842&HistoricalAwards=false
• 关键词: Purchase; Picosecond; Laser; System

With this award from the Chemistry Research Instrumentation and Facilities (CRIF) Program, the Department of Chemistry at the University of California in Irvine will acquire a picosecond laser system. This equipment will enhance research in the following areas: 1) lifetime measurements for epitaxial quantum dots on graphite & silicon; 2) second harmonic generation from assymetric metal nanoparticle dimers; 3) an ultra sensitive probe for trace gases with applications in atmospheric chemistry and medicine; 4) ionization and dissociation dynamics in liquid helium droplets; 5) photogeneration of redox intermediates in hemeproteins; 6) photoluminescent supramolecular and polymeric systems; and 7) synthesis and chemistry of yttrium and lanthanide metal complexes.A 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.

有了化学研究仪器和设施(CRIF)计划的这一奖项，加州大学欧文分校的化学系将获得一台皮秒激光系统。该设备将加强以下领域的研究：1)石墨和硅上外延量子点的寿命测量；2)非对称金属纳米二聚体的二次谐波产生；3)用于大气化学和医学的痕量气体的超灵敏探测器；4)液氦液滴中的电离和解离动力学；5)光产生血红蛋白中的氧化还原中间体；6)光致发光超分子和聚合物系统；以及7)Y和稀土金属络合物的合成和化学。皮秒激光提供相干可见光或红外光的超快脉冲，使研究人员能够获得关于快速发生化学反应的重要信息。它的使用可能会使我们对活性和非活性分子的性质的理解有所突破。