摘要
贝塞尔光束因其迥异于普通光束的性质而备受关注。传统的教材对于这种光束干涉成因叙述很少。本文通过对双棱镜光场的思考引入对贝塞尔光场形成物理机制的讨论,在此基础上阐述产生该光束的实验装置的物理依据,最后通过详细的数值模拟,对此干涉机制给出了科学的阐述。通过本文的探索研究将为贝塞尔光束在基础物理教学方法和理论分析方面提供一定的有益参考。
The Bessel beam has attracted much attention because of its different properties from ordinary beams.Few textbooks describe about its cause from the aspect of the nature of interference.It introduces the discussion of the physical mechanism of Bessel light field formation by thinking about the double prism light field,and on this thought,explain the physical basis of the experimental device that generates the beam.Numerical approvals are provided.This work aims to explore the teaching method of this kind of light beam at the level of basic physics,which will be useful reference for teaching methods and theoretical analysis of the Bessel beam in a related physics course.
作者
张明辉
李劲松
ZHANG Minghui;LI Jingsong(Anhui University,Hefei 230601,China)
出处
《大学物理实验》
2021年第5期11-14,共4页
Physical Experiment of College
基金
安徽省高等学校省级质量工程项目(2020jyxm0100)
安徽大学校外实践教育基地建设项目(Y020412003/056)
大学生科技文化竞赛项目(Y020712002/245)。
关键词
教育模式
物理实验
教学改革
贝塞尔光束
education mode
physical experiment
teaching reform
Bessel beam
