Creation of a Laser-Based Kinetics/Spectroscopy Laboratory

一个基于激光的动力学/光谱学实验室正在创建中，为物理化学、仪器分析、聚合物化学实验室和本科生研究提供服务。有了这些设备，学生们可以进行实验来深入了解课堂上讨论的化学和物理原理。实验室里有两套仪器，每一套都可以很容易地进行一些实验。一个利用稳态激发来影响拉曼散射、发射光谱、荧光分析和光散射。该系统包括一个150mw氩离子激发激光器和一个由单色仪、光电倍增管、锁定放大器或静电计组成的探测系统。数据收集由计算机控制。第二种布置采用脉冲氮激光泵浦染料激光激发源，使学生能够测量发光寿命并进行脉冲探测实验。检测由数字示波器完成。

A laser-based kinetics/spectroscopy laboratory is being created to service students in physical chemistry, instrumental analysis, and polymer chemistry laboratories and undergraduate research. With this equipment, students perform experiments to gain insights into the chemical an physical principles discussed in lecture courses. The laboratory houses two instrumental arrangements, each of which can be easily adapted to perform a number of experiments. One utilizes steady-state excitation to effect Raman scattering, emission spectroscopy, fluorescence analysis, and light scattering. This system includes a 150 mW Argon-ion excitation laser and a detection system consisting of a monochromator, photomultiplier tube, and either a lock-in amplifier or electrometer. Data collection is under computer control. The second arrangement features a pulsed-nitrogen laser pumped dye laser excitation source that allows students to measure luminescence lifetimes and perform pulse-probe experiments. Detection is accomplished with a digital oscilloscope.