Course Code: B22009H
Course Name: Modern Physics Experiments
Lecture Time: 32 sessions, 2 hours/session
As an important professional basic course of high grade (what are “high grade students”?) students, Modern Physics Experiments involves a wide range of physical knowledge and plays the important role of connecting the former and the latter in the whole teaching process. This course is aimed at letting students learn how to explore physical phenomena with experimental methods through comprehensive and technical training of experimental methods, enrich and animate students' physical thoughts, develop rigorous scientific style and the ability of independently analyzing and solving problems.
By finishing a number of experiments, students should meet the following requirements:
2.1 Correctly use the general instrument by reading the instructions and finding references; Completely understand fundamental physical concepts and basic physical laws involved in the finished experiments, and master the relative experimental technique;
2.2 Understand the process of studying physics problem by experiment, put forward their own experimental programs for a problem, and make the basic judgment of the experimental results.
2.3 Obey the academic ethics, develop meticulous experimental habits, and adhere to the scientific style of seeking truth from facts.
Topics and Schedule
3. Experimental tasks and skills that should be mastered
Modern physics experiments course includes 12 experiments consisting of fields such as atomic physics, nuclear physics, laser and modern optics, semiconductors, magnetic resonance, low temperature and vacuum, etc. It involves three main aspects: 1) the important content of modern physics; 2) the main fields of modern physics; 3) experimental technique widely used in modern physics.
3.1. Franck-Hertz experiment
3.2. Compton scattering (at Institute of high energy physics)
3.3. Abbe imaging principle and spatial filtering
3.4. Vibrational Raman spectra
3.5. Q-switch in solid laser and optical frequency doubling
3.6. Measure dielectric film thickness and refractive index by
3.7. Research on characteristic of linear array CCD
3.8. Nuclear magnetic resonance
3.9. Ferromagnetic resonance
3.10. Observation of the basic properties of superconductors
3.11. Vacuum acquisition and measurement
3.12. Scanning probe microscope
3.13. Computational physics practice
4. Time Allocation and Schedule
Finish the above experiments in 64 class hours (Credits 4.0). 5 class hours for every experiment, and the course lasts a total of 13 weeks.
5. Teaching Arrangement and Method
According to the course selection, a group of 8 students does the same subject experiment. 1-2 use a set of equipment. On the basis of preview before class, carry out experiment independently after listening to the instructors’ experimental explanation. Instructors should earnestly observe the experimental situation of each student, and give timely guidance and evaluation. Students can discuss the progress of the experiment. The original experimental data obtained by the students needs to be confirmed by the instructors, and they should finish the experiment reports on time after class.
The instructors, through the experiment reports, inspects students' experiments and gets to know the needs and opinions of students.
The total score of students in the experimental class is 100 percent, and the final grade will be determined according to the results of each experiment. The assessment of each experiment is divided into the following three aspects.
(1) Preview (20%)
According to the preview reports and the discussion at beginning of class, inspect whether students have read the experiment notes, understand the principle and content of the experiment, or have finished the questions of preview.
(2) Experimental operation (50%)
Whether students comply with classroom discipline and experimental procedures, have clear idea of the experiment, have independent analysis and problem-solving skills, have rigorous experimental attitude, and obtain reliable and reasonable measurement results, etc.
(3) Experiment report (30%)
Whether the report is standard and completed or not; whether they can use their own language to concisely describe the experimental principle, the description of the experimental procedure is consistent with the practice, the data processing is correct, the chart is standard, there is the discussion of the experimental results, and the teacher's requirement problems are done and so on. Encourage students to independently solve unexpected problems encountered in the process of the experiment or deeply discuss one or two issues in the report.