Laser Based Experiments in Chemistry and Physics

大卫·V·格拉应在9552337财年支付24,735美元给威斯敏斯特大学，MD 21157 ILI-仪器项目：化学标题：基于激光的化学和物理实验西马里兰学院将在其物理化学、仪器技术和光学实验室中增加激光物理和激光光谱的重要组成部分。此外，三门入门课程，其中两门是为非理科专业的学生开设的，将通过激光方面的经验加以加强。尽管激光在研究生研究中已经变得无处不在，但目前缺乏足够的仪器设备，阻碍了我们的学生获得任何有意义的实践经验。通过增加几种不同的激光系统和外围设备，如单色仪和数字示波器，我们计划向学生介绍现代光学的物理基础和先进的光谱原理。在物理化学和仪器技术中，许多重要的光谱技术，如拉曼光谱、脉冲探测和发光衰变，将成为我们现代实验室不可或缺的一部分。这些话题目前仅限于在我们的课堂讨论中扮演不适当的小角色。建议的设备与仪器技术特别相关，学生将从各个组件，即光源、样品、单色仪和检测器组装他们自己的分光计。在光学课程中，学生将使用单个组件(即增益介质、端面反射镜、输出耦合器和调谐元件)来构建激光器，并研究每个组件在系统整体运行中的作用。这项工作将补充关于纵模和横模以及光学增益和损耗的理论讨论。在普通物理和其他激光实验中，学生们将使用脉冲氮气激光器和数字示波器来确定光速。这项计划所支持的课程现代化，将大大提升我们的化学和物理专业学生的背景，这些学生大部分会升入研究生或专科学校。

David V. Guerra DUE 9552337 Western Maryland College FY1995 $24,735 Westminster, MD 21157 ILI - Instrumentation Project: Chemistry Title: Laser Based Experiments in Chemistry and Physics Western Maryland College will add the significant component of laser physics and laser spectroscopy to its Physical Chemistry, Instrumental Techniques, and Optics Laboratories. In addition, three introductory courses, two of them for non-science majors, will be enhanced by an experience with lasers. Although lasers have become ubiquitous in post-graduate research, a lack of adequate instrumentation currently prevents any meaningful "hands-on" experience for our students. Through the addition of several assorted laser systems and peripheral equipment such as a monochromator and digital oscilloscope, we plan to introduce students to the physical basis of modern optics and to advanced spectroscopic principles. In Physical Chemistry and Instrumental Techniques, many important spectroscopic techniques, such as Raman, pulse-probe, and luminescence decay, will become integral parts of our modern laboratories. Those topics are currently limited to an inappropriately small role in our classroom discussion. The proposed equipment is especially relevant in Instrumental Techniques where students will assemble their own spectrophotometers from the individual components, i.e., light source, sample, monochromator, and detector. In Optics, students will construct lasers from individual components (i.e., gain media, end-mirror, output-coupler, and tuning element) and examine the role of each component in the overall operation of the system. That exercise will complement theoretical discussions of longitudinal and transverse modes and optical gain and losses. In General Physics, a mong other laser experiments, students will use a pulsed nitrogen laser and a digital oscilloscope to determine the speed-of-light. The background of our Chemistry and Physics students, most of whom go on to graduate or professional schools, will be greatly enhanced by the curricular modernization supported by this project.