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.
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.
作者
冯禹
王广
赵敏
李佛生
FENG Yu;WANG Guang;ZHAO Min;LI Fo-sheng(School of Physics Science and Engineering,Tong Ji University,Shanghai 200092,China)
出处
《大学物理》
2018年第11期46-51,共6页
College Physics
关键词
光环
反射
圆锥曲线
ring light
reflection
conic curve
