传统全息干涉测量方法具有系统误差小、测量精度高等许多优点,但也存在着测量过程复杂等一些缺点。为此,我们首次提出了利用光折变晶体,如掺铁铌衡锂LiNbO_3:Fe晶体作记录材料的动态两波混频 The traditional method of holographic interferometry has many advantages, such as small system error and high measurement precision, but there are some shortcomings such as complex measurement process. To this end, we first proposed the use of photorefractive crystals, such as iron-doped niobium lithium LiNbO_3: Fe crystal recording material for dynamic two-wave mixing