用时间延迟激光感生双光栅方法测量两束光的相对相位变化  

Measurement to the relative phase change between two lights by time-delayed laser induced double gratings

作　　者：姜谦[1] 俞祖和[1] 米辛[1] 张治国[1] 傅盘铭[1] 

机构地区：[1]中国科学院物理研究所,北京100080

出　　处：《光学学报》1993年第2期130-133,共4页Acta Optica Sinica

基　　金：国家自然科学基金资助

摘　　要：用时间延迟激光感生双光栅研究光路中的相位变化.实验结果表明,通过拍频信号峰值的位移,可以测量两束频率与偏振均不相同的光经过介质后相对相位的变化.We have studied the phase change in the optical path by a method of time-delayed laser induced double gratings. It is found that through the shift of the peak position of the beat, the relative phase change between two lights which have different frequency and polarization can be measured after they pass through a medium.

关 键 词：时间延迟 双光栅 相位计量 光束 

分 类 号：O437[机械工程—光学工程]