Photon and electron interaction with atoms and molecules

光子和电子与原子和分子的相互作用

• 批准号: 261680-2013
• 负责人: Kedzierski, Wladyslaw
• 金额: $ 1.53万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=571114
• 关键词: Photon; electron; interaction; atoms; molecules

Many everyday phenomena are related to the interaction of electrons or photons with matter. Some, such as the "Northern Lights", have been fascinating people for centuries. Many devices and technological developments such as the TV screen or the laser-barcode reader depend on such interactions though those end-results were not anticipated when the original investigations were being carried out. The present research is aimed at quantifying some of the important processes which occur when electrons and/or photons interact with individual atoms and molecules. Our data will be helpful in explaining spectroscopic observations from Jupiter's environment, in tailoring low temperature plasma environments such as are used in the manufacture of semi-conductor components and in quantifying some of the processes which are important in the earth's atmosphere. These experiments will be carried out using two unique facilities which we have developed at the University of Windsor - (1) a special, ultra-cold, solid rare gas matrix detector which is selectively sensitive to metastable oxygen and sulphur atoms, and (2) a magneto-optical atom trap with a built-in electron gun system, which has the capability of measuring interactions between electrons and excited target species. Very few measurements of this latter type have ever been made despite the importance of such interactions in a multitude of situations.

许多日常现象都与电子或光子与物质的相互作用有关。有些，如“北方之光”，几个世纪以来一直吸引着人们。许多设备和技术 诸如电视屏幕或激光条形码阅读器的发展依赖于这种相互作用，尽管在进行最初的研究时没有预料到这些最终结果。本研究旨在量化电子和/或光子与单个原子和分子相互作用时发生的一些重要过程。我们的数据将有助于解释从木星环境的光谱观测，在剪裁低温等离子体环境，如用于制造半导体元件和量化的一些过程，这是重要的地球大气。这些实验将使用我们在温莎大学开发的两种独特的设施进行-（1）一种特殊的、超冷的、固体稀有气体基质探测器，它对亚稳态氧原子和硫原子有选择地敏感，（2）一种磁光原子阱，它有内置的电子枪系统，能够测量电子与受激目标物质之间的相互作用。尽管这种相互作用在许多情况下都很重要，但很少有人对后一种类型进行测量。