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.

9876991Kresin 该项目涉及对大型超冷氦团簇中夹带的物质的研究。 通过嵌入双原子分子的光解离，将在团簇内制备具有 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出现的过程，可以获得有关中性物质通过量子流体液滴的传输以及此类介质中的解离过程的信息。 还将进行额外的光谱研究和簇聚集现象的分析。 该研究得到了物理和化学部门以及多学科活动办公室的支持。