摘要
旋转矢量在讨论两个及两个以上简谐振动合成的问题时,是一种很方便的工具。利用旋转矢量分析计算光的干涉和衍射光强分布十分简洁直观,而无需涉及复杂的积分计算,且得到的结果与利用菲涅尔衍射积分公式得到的结果一致。利用旋转矢量讨论光的干涉和衍射问题可加深同学对振动合成、干涉和衍射相关知识的整体理解。本文利用旋转矢量具体讨论了光的干涉和单缝衍射的条纹分布和光强分布。
The rotational vector is a very convenient tool for discussing the combination of two or more than two harmonic vibrations. It is very simple, intuitive to analyze and calculate the intensity distribution of light interference and diffraction by using rotational vector, without needing to calculate the complex integral calculation, and the results obtained are consistent with the Fresnel diffraction integral formula＇s results. At the same time, it is able to help the students to deepen their overall understanding of the harmonic vibration combination, interference and diffraction by using the rotational vector to discuss the interference and diffraction of light. In this paper, we use the rotational vector to discuss the fringe distribution and intensity distribution of light interference and single slit diffraction.
出处
《物理与工程》
2017年第5期56-60,共5页
Physics and Engineering
基金
国家自然科学基金(11347024)
重庆市教育委员会2105年度高等教育教学改革研究立项项目(153151)
重庆市科委基金(2016jcyjA0336)
重庆市教委基金(KJ1401313)
重庆科技学院博士教授启动基金(CK2014B21)
重庆科技学院重点项目培育基金(CK2015128)
关键词
旋转矢量
光的干涉
光的衍射
光强分布
rotational vector interference of light diffraction of light intensity distribution
