摘要
用曝光干涉法制作θ调制光栅物片对干涉场的质量要求很高,传统方法不能直接判断干涉场的质量.利用CCD探测器实时采集干涉条纹,编写Matlab程序,计算干涉场参量.该改进可以保证在干涉场较理想时曝光,提高了制作全息光栅的成功率.
Traditional methods can not directly determine the quality of the interference field. A real-time detection of the interference field was achieved using CCD detector, and Matlab program was written to calculate the interference field parameters using acquired images, thus the holographic im- age could be taken when the interference field was good enough to increase the success rate of the pro-duction of holographic gratings.
出处
《物理实验》
2015年第7期6-9,共4页
Physics Experimentation
关键词
θ调制
全息光栅
干涉场
θ modulation
holographic grating
interference field
