微光束平移尼科耳棱镜的设计

Nicol Prism's Design of Microbeam Translation

从惠更斯原理出发,根据e光在晶体中的传播特性,从理论上详细分析了光平行于常规尼科耳棱镜长边入射时透射光相对入射光的平移并得出了光束平移的公式。通过分析发现,随结构角γ的增大光束平移量d变小的趋势十分明显。运用数学方法求出了一种光束平移量最小的尼科耳棱镜形式。

Based on Huygens＇ principle, according to e wave normals＇ propagation characteristic in crystals, the beam translation of normal Nicol prism in full is deduced when incident ray parallels prism＇long side in theory. The single parameter change to the light beam translation＇s influence in the foundation of the light beam translation formula is analyzed. The structure angle ）＇ increases with the light beam translation d decreasing. One kind of light beam translation quantity smallest Nicol prism form using mathematics method is presented.