摘要
通过控制变量法,探究了声光效应中布拉格衍射下不同超声波频率、功率以及是否载入调制信息下衍射光斑的光强横向分布。并用MATLAB软件拟合了0级和-1级衍射光的光强分布图,将实验结果与理论解释进行对比分析。
Through the control variable method,the lateral distribution of the intensity of the diffracted spot under different diffraction frequencies and powers under Bragg diffraction in the acousto-optic effect is investigated.The light intensity distribution maps of the 0th and-1st order diffracted lights were fitted with MATLAB software,and the experimental results were compared with the theoretical explanations.
作者
方明月
黎俊
李舒颖
赵佳佳
曾育锋
FANG Mingyue;LI Jun;LI Shuying;ZHAO Jiajia;ZENG Yufeng(College of Physics and Telecommunications Engineering,South China Normal University,Guangzhou 510006,China;School of Information and Optoelectronic Science and Engineering,South China Normal University,Guangzhou 510006,China;National Demonstration Center for Experimental Physics Education,South China Normal University,Guangzhou 510006,China)
出处
《大学物理实验》
2021年第1期23-26,共4页
Physical Experiment of College
关键词
声光效应
布拉格衍射
光强分布
acousto-optic diffraction
Bragg diffraction
the light intensity distribution
