大学物理 ›› 2018, Vol. 37 ›› Issue (11): 46-51.doi: 10.16854 /j.cnki.1000-0712.160564

• 大学生园地 • 上一篇    下一篇

对激光照射粗金属丝形成环形光现象的物理机制分析

冯禹,王广,赵敏,李佛生   

  1. 同济大学物理科学与工程学院,上海200092
  • 收稿日期:2016-12-27 修回日期:2018-05-19 出版日期:2018-11-20 发布日期:2018-11-20
  • 通讯作者: 赵敏,E-mail: minzhaotj@ tongji.edu.cn
  • 作者简介:冯禹(1995—),男,甘肃省庆阳人,同济大学物理科学与工程学院2013 级本科生.

Formation mechanism research and simulation of a laser ring induced by a thick metal wire

FENG Yu,WANG Guang,ZHAO Min,LI Fo-sheng   

  1. School of Physics Science and Engineering,Tong Ji University,Shanghai 200092,China
  • Received:2016-12-27 Revised:2018-05-19 Online:2018-11-20 Published:2018-11-20

摘要: 当一束激光照射在粗金属丝上时,在垂直于金属丝的屏幕上会出现环形的光.本文分析了光环产生的物理机制,指出光环主要由于激光在非平面上反射产生,并计算模拟各参数对光环形状的影响,同时通过实验进行了定量探究.

关键词: 光环, 反射, 圆锥曲线

Abstract: When a beam of laser irritates on a thick metal wire,a light ring will appear on the screen which lies vertical to the wire. In this paper,we analyze the formation mechanism of the ring,explore the influence of related parameters on the ring with computer simulation and experiments. It is shown that the proposed theory matches the experiments very well.

Key words: ring light, reflection, conic curve