摘要
根据干涉理论对水中气泡产生的激光远场干涉现象进行分析,并对干涉光强度、产生的干涉条纹数以及条纹间距进行了计算.结果表明:水中气泡产生的远场干涉与气泡大小及观察角密切相关;条纹数随气泡半径呈线性变化;条纹间距随观察角的增大而增大.实际拍摄的干涉图像得到了很好的证实.
The laser far-field interference phenomenon of a bubble in water is analyzed based on the interference theory. The intensity of the interference light, number of stripes, and space between stripes are calculated. The results indicate that the interference pictures have relations with the radius of the bubble and the observe angle, is linear with, and increases with. The interference pictures obtained by CCD are in agreement with the theoretical results.
出处
《光电技术应用》
2007年第6期20-23,共4页
Electro-Optic Technology Application
关键词
气泡
激光干涉
光程差
干涉条纹
bubble
laser interference
optical-path difference
interference stripe
