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现行高级中学物理课本下册第九章“光的衍射”一节课文倒数第二段叙述:“……,特别有趣的是图8乙,在不透明圆板的阴影中心有一亮斑,这就是著名的泊松亮斑。……,当实验证明了圆板阴影的中心确实有一个亮斑时,光的波动理论就确切无疑地被证实了。”当学生读完这段叙述时,是多么希望教师能用实验重现这一亮斑,我怀着师生渴望的心情,思考了很长时
The second paragraph of the second chapter of the current physics textbook, “The Diffraction of Light” in the second volume of the physics textbook, is narrated: “...”. Particularly interesting is Figure 8B. There is a bright spot in the center of the shadow of the opaque circular plate. This is the famous Poisson bright spot.... When the experiment proved that there is indeed a bright spot in the center of the shadow of the circular plate, the wave theory of light is definitely confirmed."When the student reads the narrative I hope teachers can use experiments to reproduce this bright spot. I have long-term thinking with teachers and students.