声光相互作用产生拍频及其机理的研究  

Beat Frequency Generated by Acousto-optic Interaction and Principle Research

作　　者：施慧渊[1] 杨立森[1] 李强[1] 

机构地区：[1]内蒙古师范大学物理与电子信息学院,呼和浩特010022

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)

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.

关 键 词：声光学 声光调制器 拍频 

分 类 号：O426.3[理学—声学]