用激光器做光学实验

• 作 者: 凌铮
• 机 构: 南京晓庄师范学校,
• 出 处: 江苏教育
• 发表日期: 2004年期
• 关键词: 光学实验 光线发散 光具盘 波动光学 附属装置 白炽灯泡 亮度差 光的反射 圆孔 有机玻璃板

过去进行光学实验,除少数有专用暗室的学校外,一般均需临时布置遮光,又由于采用白炽灯泡作光源,光线发散亮度差,效果不好;同时,白炽灯灯光源是非干光源,用来作光的干涉、衍射等波动光学实验,效果更差。现在用氦氖激光器作光源,不需光具盘、狭缝等附属装置,在一般教室中,晴天不需遮光,就能顺利进行各种光学实验,效果良好。这里介绍应用激光器进行有关光学实验的方法。

In the past, optical experiments, except for a few schools with private darkrooms, required temporary arrangement of shading and use of incandescent light bulbs as light sources, resulting in poor light distribution and poor results. At the same time, incandescent light sources were used as non-dry light sources For light interference, diffraction and other optical experiments, the effect is even worse. Now with He-Ne laser as the light source, without optical discs, slits and other ancillary devices, in general classrooms, sunny without light, you can smooth a variety of optical experiments, the effect is good. Here is the application of lasers for optical experiments.