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

本项目重点研究具有较大静态或动态电偶极矩的尺寸分辨团簇的电子和结构特性。实验将在光束中的自由簇上进行。本文将探讨以下主题：(i)银和金纳米团簇的电子表面结构，特别是表面s-电子和d-电子的筛选参数；（ii）吸附的分子对这类簇的光谱的影响；（iii）水团簇中偶极氨基酸两性离子的形成。更广泛的影响包括本科生和研究生的教育，鼓励多样性和向当地高中生伸出援助之手。

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.