Intense Field Population Transfer

密集的野外人口转移

• 批准号: 0140312
• 负责人: Douglass Schumacher
• 金额: $ 35.79万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-06-15 至 2006-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0140312&HistoricalAwards=false
• 关键词: Intense; Field; Population; Transfer

This work examines two aspects of the interaction of light and matter under conditions of strong response: 1) supercontinuum generation (SCG), the dramatic transfer of pump photons to modes covering a broad spectrum and 2) adiabatic passage (AP) in atoms, the transfer of atomic population from one state to another via pulses in "counter-intuitive" sequence. SCG is fundamentally important to the study of intense pulse propagation through media and has found important application in the generation of tunable short laser pulses, high-speed communication systems, frequency metrology, and medical diagnostics. AP is a robust and efficient technique for population transfer which has found useful application in atom optics and quantum measurement. Experiments will be undertaken to examine the details of SCG in order to establish understanding at a fundamental level. AP will be explored through the use of shaped laser pulses and via various intermediate states.

这项工作考察了在强响应条件下光与物质相互作用的两个方面：1)超连续谱产生（SCG），泵浦光子向覆盖广谱模式的剧烈转移；2)原子中的绝热通道（AP），原子种群通过“反直觉”顺序的脉冲从一种状态转移到另一种状态。SCG对于研究强脉冲在介质中的传播具有重要意义，并在可调谐短激光脉冲的产生、高速通信系统、频率计量和医疗诊断中得到了重要应用。AP是一种鲁棒且高效的种群转移技术，在原子光学和量子测量中有着广泛的应用。将进行实验以检查SCG的细节，以便在基本水平上建立理解。AP将通过使用形状激光脉冲和通过各种中间状态进行探索。