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

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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

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