声光衍射及实验研究  

The Principle of Acousto-Optic Diffraction and Experimental Research

作　　者：刘海霞[1] 盖磊[1] 刘光娟[1] 栾晓宁[1] 

机构地区：[1]中国海洋大学信息科学与工程学院,山东青岛266100

出　　处：《实验室研究与探索》2009年第1期56-59,共4页Research and Exploration In Laboratory

摘　　要：介绍了声光衍射的原理,并对布拉格衍射中的声光偏转和声光调制进行了实验研究。实验结果表明:通过改变超声波的频率和功率可以实现对激光束的方向和强度的控制和调节。所获得的实验结果和理论分析相符。同时对声光介质中的声速进行了测量。The principle of acousto-optic diffraction was introduced,and the experimental research was carried through about acousto-optic deflexion and modulation of Bragg diffraction.The result of experiment shows that the direction and intensity of laser bean can be controlled and adjusted by changing the frequency and power of ultrasonic wave.The results of experiment coincide with the theoretical analsis.At the same time,the velocity of ultrasonic wave was measured in medium.

关 键 词：声光衍射 声光偏转 声光调制 

分 类 号：O426.3[理学—声学]