石英晶体双折射率紫外至近红外波段色散特性实验的研究

介绍了偏光干涉测量石英晶体双折射率色散特性及其相关数据处理方法。利用偏光干涉光谱极值点的精确判断,完成极值点波长对应的材料的双折射率的测量,获得了紫外至近红外光波段石英晶体的最大双折射率与波长关系离散的数据曲线,经多项式拟合数据处理,进而得到任意波长的双折射率函数关系式。此方法对其它各向异性晶体材料的双折射率色散特性的研究同样适应。

Study of quartz crystal's birefringence dispersion character from ultraviolet band to near infrared band

The method of measuring out quartz crystal's birefringence dispersion character through polarization interference and processing correlated data was introduced. Through accurate judgment extreme point of polarization interference spectrum, the measurement of the corresponding material's birefringence at this extreme point was achieved. And then the curve of discrete data about the relationship between the maximal birefringence of quartz crystal and wavelength was obtained. Finally, the relational function expression of birefringence at random wavelength was achieved through polynomial fitting data processing. For the study of birefringence dispersion character of other aeolotropic crystal material, this method can also be applied.