Introduction of Semiconductor Laser Diodes into the Undergraduate Physics Curriculum

将半导体激光二极管引入本科物理课程

• 批准号: 9451178
• 负责人: Theodore Hodapp
• 金额: $ 1.54万
• 依托单位: Hamline University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-08-15 至 1997-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9451178&HistoricalAwards=false
• 关键词: Introduction; Semiconductor; Laser; Diodes; into

9451178 Hodapp Over the past decade, solid-state laser diodes have made inroads into a wide range of commercial electronics and industrial applications. These inexpensive, monochromatic, wavelength tunable, intense light sources are useful not only in CD players but in a number of applications including atomic spectroscopy and laser- cooling. This project will explore the physics of laser diodes and their application to atomic spectroscopy as well as introduce first-year physics students to concepts of laser spectroscopy and a portion of the advanced physics curriculum. The project will construct a pair of optical workstations suitable for measuring characteristics of laser diodes as well as for using the light to perform absorption and saturated absorption spectroscopy on atomic rubidium. These experiments have been designed with an open-ended quality to them to allow students to explore the physics, rather than to just execute a standard cookbook type of lab. As a portion of this laboratory, upper-division students will be required to present their findings to small groups of students in first-year physics laboratories. In this way students will not only learn the concepts more clearly (by having to present them), but the project will provide an exciting introduction to physics not traditionally seen in the first-year laboratory. These upper-division laboratories are required of all physics majors and constitute a significant step forward pedagogically, as it requires students to develop their own experiments (within the context of the lab), make their own predictions, and truly discover their own education.

9451178 HODAPP在过去十年中，固态激光二极管已进入了广泛的商业电子和工业应用。这些廉价，单色，波长可调，强烈的光源不仅在CD播放器中有用，而且在许多应用程序中都有用，包括原子光谱和激光冷却。该项目将探索激光二极管的物理学及其在原子光谱中的应用，并将一年级物理学生介绍到激光光谱概念和一部分高级物理课程的概念。该项目将构建一对适合测量激光二极管特征的光学工作站，以及使用光在原子rubidium上执行吸收和饱和吸收光谱。这些实验的设计具有开放式质量，以使学生可以探索物理学，而不仅仅是执行标准的食谱类型的实验室。作为该实验室的一部分，将要求上级学生向一年级物理实验室中的小组学生介绍他们的发现。这样，学生不仅可以更清楚地学习这些概念（必须提出），而且该项目将为一年级实验室中传统上看到的物理学提供令人兴奋的介绍。所有物理学专业的上层实验室都需要这些上限的实验室，并在教学上构成了重要的一步，因为它要求学生开发自己的实验（在实验室的背景下），做出自己的预测，并真正发现自己的教育。