摘要
用Ｈｕｙｇｅｎｓ－Ｆｒｅｓｎｅｌ原理，对平行组合的正弦位相光栅的机械移动的衍射效应，导出了衍射角度、移频效应及衍射强度的表达式，并将结果和两种典型位相光栅的移动效应进行了比较，结果表明：这种组合式位相光栅机械移动时的衍射效应的特点，预期有一定的实际应用。
In this paper we have derived the expression of diffraction angle, the frequency shifting effect and the efficiency of diffraction for the parallel-combined sinusoidal phase grating based on mechanical moving by using Huygens-Fersnel principle. The results show that the diffractiou effect of new phase grating is of unique character in comparison with that of two typical moving phase grating.
出处
《应用激光》
CSCD
北大核心
1994年第1期33-35,30,共4页
Applied Laser
关键词
组合位相光栅
机械移动
衍射效应
parallel-combined phase grating, mechanical moving, diffraction effect
