Giant resonances and giant dipoles: Cluster-beam spectroscopy of metal nanoparticle ions and amino acid zwitterions

本项目致力于研究具有大的静态或动态电偶极矩的尺寸分辨团簇的电子和结构性质。实验将在束流中的自由团簇上进行。将探讨以下主题：(I)银和金纳米团簇的电子表面结构，特别是表面区域S电子和d电子的屏蔽参数；(Ii)吸附分子对此类团簇光谱的影响；(Iii)水团簇中偶极氨基酸两性离子的形成。更广泛的影响包括对本科生和研究生的教育，鼓励多样性，以及向当地高中生推广。

This project focuses on the study of the electronic and structural properties of size-resolved clusters, which possess large static or dynamic electric dipole moments. The experiments will be carried out on free clusters in beams. The following topics will be explored: (i) the electronic surface structure of sliver and gold nanoclusters, specifically, the screening parameters of s- and d-electrons in the surface region; (ii) the influence of adsorbed molecules on the optical spectra of such clusters; (iii) the formation of dipolar amino acid zwitterions in water clusters. The broader impacts involve education of both undergraduate and graduate students, encouragement of diversity and outreach to local high school students.