Atomic scale ion microscopy via laser cooling and correlated imaging

通过激光冷却和相关成像的原子级离子显微镜

• 批准号: DP200103452
• 负责人: Prof Robert Scholten
• 金额: $ 33.84万
• 依托单位: The University of Melbourne
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2021
• 资助国家: 澳大利亚
• 起止时间: 2021-07-01 至 2025-06-30
• 项目状态: 未结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP200103452
• 关键词: Atomic; scale; ion; microscopy; via

This project will develop next-generation focused ion beam microscopy and nanofabrication using a novel cold ion source based on photoionisation of a laser-cooled atom beam. The low temperature and complex internal state structure of the constituent atoms combine to allow generation of ions with unprecedented brightness and resolution. We will use three unique and innovative ideas: field ionisation of atoms in so-called 'exceptional' states to reduce chromatic aberration; electron-ion correlations to enhance control of the ions at the nanoscale; and atom-atom interactions to isolate and manipulate individual ions. The new technology will enable advances in semiconductor nanofabrication and material characterisation.

该项目将基于激光冷却原子束的光电位化，使用新型冷离子源来开发下一代浓缩的离子束显微镜和纳米化。组成原子的低温和复杂的内部状态结构结合在一起，允许产生具有前所未有的亮度和分辨率的离子。我们将使用三种独特而创新的思想：所谓“特殊”状态中原子的田间电离以减少色差；电子离子相关性以增强对纳米级离子的控制；和原子 - 原子相互作用以隔离和操纵单个离子。这项新技术将使半导体纳米化和材料表征的进步。