Diode Laser Spectroscopy

二极管激光光谱

• 批准号: 9250338
• 负责人: Paxton Wilt
• 金额: $ 1.26万
• 依托单位: Centre College of Kentucky
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-07-15 至 1995-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9250338&HistoricalAwards=false
• 关键词: Diode; Laser; Spectroscopy

This project will enhance the education of Centre's physics majors in the related areas of lasers, atomic spectroscopy and modern optics. Students and faculty are fabricating a laser spectrometer and using it to study some details of the atomic structure of rubidium and possibly cesium. Many of the system components (mirrors, detectors, diode lasers, a digital oscilloscope system) were purchased. For pedagogical purposes, however, undergraduates construct and test the laser controller and detector circuits. We are using the system in upper- divisional courses in modern physics, optics, and quantum mechanics. Special student projects and research are conducted in two areas: computer enhancement of laser spectra, and the effect of an external magnetic field on atomic spectra (Zeeman Effect).Our undergraduates gain experience in fabricating and using rather sophisticated optical, laser and electronic systems. Students observe several important physical phenomena in atomic spectra: line broadening due to thermal motion of gaseous atoms (Doppler effect), Zeeman splitting, isotopic effects (85Rb, 87Rb), and nuclear hyperfine effects (interaction of electrons with nuclear spin, or magnetic dipole effect, and effects caused by the finite size of the nuclear charge, or nuclear quadrupole effect). Finally, it is expected that this project will better prepare and motivate our physics students for graduate study.

该项目将加强中心的物理教育 激光、原子光谱学等相关专业， 现代光学 学生和教师正在制造一种激光器 光谱仪和使用它来研究原子的一些细节 铷和铯的结构。 许多系统 组件（反射镜、探测器、二极管激光器、数字 示波器系统）。 出于教学目的， 然而，本科生构建和测试激光控制器， 和检测器电路。 我们在上- 现代物理学、光学和量子学的分科课程 力学 进行特殊的学生项目和研究 在两个领域：计算机增强激光光谱， 外磁场对原子光谱的影响（塞曼 效果）。我们的本科生获得的经验， 利用相当复杂的光学、激光和电子技术 系统. 学生观察几个重要的物理现象 在原子光谱中：由于热运动的谱线增宽 气态原子（多普勒效应），塞曼分裂，同位素 效应（85 Rb，87 Rb）和核超精细效应（相互作用 具有核自旋或磁偶极子效应的电子，以及 核电荷的有限大小引起的效应，或 核四极效应）。 最后，预计这 项目将更好地准备和激励我们的物理学生 去读研究生