RUI: Precision Spectroscopy of High-Lying States of Atomic Lithium

RUI：高能态锂原子的精密光谱分析

• 批准号: 1305591
• 负责人: Jason Stalnaker
• 金额: $ 14万
• 依托单位: Oberlin College
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-08-15 至 2017-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1305591&HistoricalAwards=false
• 关键词: RUI; Precision; Spectroscopy; Lying; States

With the recent advances in atomic structure calculations and experimental techniques, atomic lithium has emerged as a promising system for exploring atomic and nuclear structure at new levels of sensitivity. The relatively simple atomic structure of lithium provides an experimentally accessible system that can be calculated at a high level of accuracy. This project provides a comprehensive investigation of the atomic structure of lithium utilizing an optical frequency comb. The development of optical frequency combs has made it possible to effectively count the optical cycles of light, resulting in absolute optical-frequency calibration. In addition to its optical-frequency measurement capabilities, frequency combs provide a powerful source for direct excitation of atomic transitions. The intellectual merit of this work is to provide significant improvement in the knowledge of the structure of atomic lithium and to further expand and develop techniques of precision spectroscopy by use of optical frequency combs. The broader impact of this work is the development of an undergraduate research program that will provide students with the opportunity to perform cutting-edge research. The experiments are carried out at Oberlin College, a four-year liberal arts college that has a history of diversity and integration of teaching and research, and are performed solely by undergraduate students and the principal investigator. As a result, the work serves a dual role of advancing scientific discovery while training and teaching undergraduate students. The nature of the work complements the teaching responsibilities of the principle investigator and allows the integration of research into the classroom and teaching laboratories.

随着原子结构计算和实验技术的最新进展，原子锂已成为一种有前途的系统，用于探索新的灵敏度水平的原子和核结构。 锂的相对简单的原子结构提供了一个实验可访问的系统，该系统可以在高度的准确性上计算出来。 该项目对利用光频梳的原子结构进行了全面研究。 光频率梳的发展使得有效地计算光周期的光周期，从而实现绝对的光频校准。除了其光频测量功能外，频率梳子还为直接激发原子过渡提供了有力的来源。 这项工作的智力优点是通过使用光学频率梳子进一步扩展和开发精度光谱的技术，从而提供显着改善原子锂结构的知识。 这项工作的更广泛的影响是开发一项本科研究计划，该计划将为学生提供进行尖端研究的机会。 这些实验是在奥伯林学院（Oberlin College）进行的，奥伯林学院（Oberlin College）是一所四年制的文科学院，具有多样性和教学和研究融合的历史，并且仅由本科生和主要研究人员进行。结果，这项工作在培训和教学本科生的同时推进科学发现的双重作用。 工作的性质补充了原则研究者的教学责任，并允许将研究整合到课堂和教学实验室中。