Splitting Intensity Ratio of Three-Element Wollaston Prism
双Wollaston棱镜光强分束比研究

The relationship of splitting intensity ratio of the three-element Wollaston prism and incident wavelengh,cutting angle and incident angle is studied using refraction law and Fresnel formula,and proved by experiment.The result indicates that the splitting intensity ratio linearly decrease with the incident wavelength augment,and the smaller the cutting angle is,the closer to 1.0 the splitting intensity ratio is.The effect of the incident angle to the splitting intensity ratio is basically a conic type,when the light is normally incidenced,the splitting intensity ratio furthest approach 1.0.The comparision of academic curve with experimental value is given,and it is beneficial to practical application of the three-element Wollaston prism.