Modern Laser Techniques in Undergraduate Physical Chemistry Laboratory

现代激光技术在本科生物理化学实验室中的应用

• 批准号: 9451976
• 负责人: Dennis Jacobs
• 金额: $ 3.42万
• 依托单位: University of Notre Dame
• 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: 1994-08-01 至 1996-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9451976&HistoricalAwards=false
• 关键词: Modern; Laser; Techniques; Undergraduate; Physical

9451976 Jacobs past two decades, applications of tunable pulsed lasers and molecular beams have revolutionized the field of Physical Chemistry. Yet both of these major technological advances are far from commonplace in most undergraduate laboratories. This project introduces a Nd:YAG-pumped dye laser system and molecular beam apparatus to the undergraduate Chemistry curriculum in a series of experiments which interrogate the fast kinetics of chemical intermediates in solution, the high-resolution nonlinear spectroscopy of molecules and clusters in supersonic expansions, and the dynamics of photodissociation in the gas phase. Students will initially use the equipment to carry out structured laboratory experiments; however, they will later have the opportunity to utilize the apparatus in executing their own research proposals. Throughout the year-long Physical Chemistry Laboratory course, students will be challenged to learn exactly how instruments make measurements, learn basic electronics, computer interfacing, and data acquisition programming. This way, their scientific exploration within the lab is no longer limited by their technical expertise, but instead, they can creatively implement experiments as their imagination guides them. Emphasis in the lab is placed on the scientific process by which students formulate and implement their own ideas.

小行星9451976 在过去的二十年里，可调谐脉冲激光和分子束的应用已经彻底改变了物理化学领域。然而，这两个主要的技术进步在大多数本科实验室中还远远不够。本计画将Nd：YAG泵浦染料雷射系统与分子束装置引入化学系本科课程中，进行一系列实验，探讨溶液中化学中间体的快速动力学、超音波膨胀下分子与团簇的高解析度非线性光谱，以及气相中光解离的动力学。学生最初将使用该设备进行结构化的实验室实验;然而，他们后来将有机会利用该设备执行自己的研究提案。 在为期一年的物理化学实验室课程中，学生将面临挑战，学习仪器如何进行测量，学习基本的电子学，计算机接口和数据采集编程。通过这种方式，他们在实验室内的科学探索不再受到他们的技术专长的限制，而是可以在想象力的引导下创造性地实施实验。在实验室的重点放在科学的过程中，学生制定和实施自己的想法。