Spectroscopy and Electronic Interferometry for Undergraduate Laboratories

本科生实验室的光谱学和电子干涉测量

• 批准号: 9552058
• 负责人: Dale Olson
• 金额: $ 1.42万
• 依托单位: University of Northern Iowa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-06-01 至 1997-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9552058&HistoricalAwards=false
• 关键词: Spectroscopy; Electronic; Interferometry; Undergraduate; Laboratories

This project is part of a long-term program to improve applied optics teaching and research in the Physics Department. This project improves introductory and intermediate lectures and labs and, also, undergraduate research opportunities. The first project goal is to improve instruction in the many courses involving light spectra through the purchase of a portable user-friendly rapid-scan spectroscope. A computer display or LCD projector makes each spectrum visible to classes of up to 80 students. In elementary and intermediate course lectures and labs, sunlight, tungsten and fluorescent lamps, laser sources, and gas tube sources can be quickly compared. Filters can be examined, including UV absorption by clear glass versus clear plastic versus sunglasses, for example. For intermediate to advanced project and research work by physics majors, holographically formed filters can be characterized, gas-tube spectra measured, and emission, absorption, and reflection by solids studied. This experience lays the foundation for some physics students to participate in a new research lab emphasizing spectroscopy of semiconductor surfaces that has been established in the Physics Department. A second project goal is to strengthen the department's capabilities in electronically based interferometry. Two existing student and faculty research programs, one on holographically based measurement of surface roughness using scattered laser light and the other on holographic interferometry applied to musical acoustics are strengthened by the introduction of electronic fringe measurement. A computer-interfaced CCD camera is obtained for this part of the project along with the upgrade of an optical table used both for course work and for musical acoustics research.

该项目是一个长期计划的一部分，以提高应用光学教学和研究在物理系。 这个项目提高了入门和中级讲座和实验室，也，本科生的研究机会。 第一个项目目标是通过购买便携式用户友好的快速扫描光谱仪来改善涉及光谱的许多课程的教学。 计算机显示器或LCD投影仪使每个光谱对多达80名学生的班级可见。 在初级和中级课程的讲座和实验中，可以快速比较日光灯、钨丝灯和荧光灯、激光光源和气体管光源。 可以检查过滤器，例如，包括透明玻璃与透明塑料与太阳镜的紫外线吸收。 对于物理专业的中级到高级项目和研究工作，可以表征全息形成的过滤器，测量气体管光谱，并研究固体的发射，吸收和反射。 这种经验奠定了基础，一些物理学生参加一个新的研究实验室，强调光谱的半导体表面已在物理系成立。 第二个项目目标是加强该部在电子干涉测量方面的能力。 两个现有的学生和教师的研究计划，一个是基于全息测量的表面粗糙度使用散射激光和全息干涉测量应用于音乐声学， 通过引入电子条纹测量而得到加强。 一个计算机接口的CCD摄像机获得了这部分项目沿着与升级的光学表用于课程工作和音乐声学研究。