Growth, Dissociation, and Transport in Helium Nanoclusters

氦纳米团簇的生长、解离和传输

• 批准号: 9876991
• 负责人: Vitaly Kresin
• 金额: $ 46万
• 依托单位: University of Southern California
• 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: 1999-06-15 至 2003-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9876991&HistoricalAwards=false
• 关键词: Growth; Dissociation; Transport; Helium; Nanoclusters

9876991KresinThis project involves the study of species entrained in large, ultracold helium clusters. Neutral ground state atoms with s-wave ground states will be prepared within the clusters by the photodissociation of embedded diatomic molecules. By studying the photodissociation fragments as they migrate toward and emerge from the surface, information will be obtained about the transport of neutral species through a droplet of a quantum fluid and about dissociation processes in such a medium. Additional spectroscopic studies and analysis of the phenomenon of cluster aggregation will also be carried out. The research is supported by the Divisions of Physics and Chemistry and the Office of Multidisciplinary Activities.

9876991 Kresin这个项目涉及对携带在大型超冷氦星团中的物种的研究。通过嵌入的双原子分子的光解离，可以在团簇内制备出具有S波基态的中性基态原子。通过研究光解离碎片向表面迁移和从表面浮现的过程，将获得关于中性物质通过量子流体液滴的传输和关于这种介质中的解离过程的信息。还将对星团聚集现象进行额外的光谱研究和分析。这项研究得到了物理系和化学系以及多学科活动办公室的支持。