Modern Optics Laboratory

9350897梁建议的工作涉及进一步发展和改善现代光学实验室课程中的多项实验，重点是光与物质、激光特性和现代光学技术的相互作用。本课程的目的是使学生能够进行更精确的测量，超越基础知识，熟悉最新的设备。该项目是该大学光学中心发展计划的一部分。其中一个核心设备是可编程的可见光/紫外分光光度计。这使学生能够准确地测量罗丹明6G在水中的振子强度，用于处理经典色散理论的实验，在处理带隙能量的实验中测量硫化镉的吸收光谱，以及在关于法拉第旋转的实验中测量铅玻璃的吸收光谱。利用Ar-离子激光器和光子计数器系统改进光散射实验。学生可以测量不同激光波长和不同散射角下的光强度。使用氮激光泵浦的染料激光，学生测量CDS光电探测器的响应时间。重要的是，学生对探测器的响应时间有一个概念。在光学滤波实验中，学生使用由CCD摄像机、图像采集卡和个人计算机组成的新型光学成像系统来记录过滤后的图像并进行精确的分析。在电光学实验中，学生们控制普克尔斯池的功能，并用计算机分析通过该池的光的状态。最后，一个新的实验展示了使用光弹调制器和相敏探测器进行光调制和解调的强大技术。***

9350897 Leung The proposed work involves the further development and improvement of a number of experiments in a Modern Optics Laboratory course emphasizing light interactions with matter, laser properties and modern optical techniques. The aim of the course is to enable students to make more precise measurements, advance beyond the fundamentals and become familiar with the latest equipment. The project is part of the planned development of an optics center at the university. One central piece of equipment is a programmable VIS/UV spectrophotometer. This allows students to measure accurately the oscillator strength of rhodamine 6G in water for the experiment dealing with the classical dispersion theory, the absorption spectrum of CdS in an experiment dealing with band-gap energy, and the absorption spectrum of leaded glass in an experiment concerning Faraday rotation. The light scattering experiment will be improved with an argon-ion laser and a photon counter system. Students can measure the intensity of light at different lasing wavelengths, as well as different scattering angles. With a dye laser pumped with a nitrogen laser, students measure the response time of CdS photodetectors. It is important that students have a concept of response time of a detector. For optical filtering experiments, students use a new optical imaging system consisting of a CCD camera, a frame grabber and a personal computer to record the filtered images and analyze them precisely. For an electrooptics experiment, students control the function of a Pockels cell and analyze the state of light passing through the cell with a computer. Finally a new experiment illustrates the powerful technique of optical modulation and demodulation using a photoelastic modulator and a phase-sensitive detector. ***