摘要
本文首先叙述了一些σ光入e光出衍射的实验现象,包括衍射图样随温度的变化以及相应的Kaman光谱的变化等。然后用文献[1]中的方法,对室温衍射图样进行了计算。证明这种偏振面旋转90°的异常衍射现象是空间相位光栅的各向异性衍射产生的。对一些其它实验现象也作了解释。
Some experimental facts concerning the anomalous diffraction pattern which arises when a laser beam o ray passes through a LiNbO3: Fe crystal with diffracted e ray and related phenomena in the Raman spectra are described. And the same method as was used in ref. [1| is applied to calculate the diffraction pattern quantitatively. Result of the calculations fits the experiment fairly well, this manifests the applicability of the theory of anisotropic diffraction of volume phase gratings to the anomalous diffraction with a 90° rotation of the polarization of the beams. Many other experimental facts are interpreted as well.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1990年第9期1511-1519,T000,共10页
Acta Physica Sinica
