摘要
声光相互作用产生频移和拍频的理论已经较为完善,但没有具体变化规律的描述。从实验出发,利用高频探测器结合共焦扫描干涉仪和频谱分析仪,用实验方法通过研究Raman-Nath衍射点的拍频现象直观地将声光相互作用产生拍频的现象展示出来,对拍频的产生机理进行了相关分析,并总结了拍频形成的规律,对其产生的条件等因素做了探索。
The theories of frequency shift and beat frequency generated by acousto-optic interaction are more perfect, but the detailed changing rules are not described. Based on experiments and with a high frequency detector, a confocal scanning interferometer and a spectrum analyzer, through researching the beat frequency phenomena of Raman-Nath diffraction point, the beat frequency phenomena generated by acousto-optic interaction is directly shown. The generation principle of beat frequency is analyzed. The generation rule of beat frequency is summarized and elements such as generation condition are explored.
出处
《光电技术应用》
2015年第1期18-21,31,共5页
Electro-Optic Technology Application
基金
内蒙古自然科学基金资助(2013MS0926)
关键词
声光学
声光调制器
拍频
acousto-optics
acousto-optic modulator
beat frequency
